How to Change Axle Fluid (99-04 Jeep Grand Cherokee WJ)

Рет қаралды 81,877

Күн бұрын

How to service the Vari-Lok rear axle on a 99-04 JGC WJ and this video will help you with all rear axle fluid replacement. Show you how to remove the differential cover, clean the surfaces and differential, apply sealant, replace diff cover and refill with the proper fluid and additive.
Chrysler Build Sheet fcacommunity.force.com/RAM/s/... Enter the VIN as it appears, case sensitive.
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Products used in the video
Valvoline SynPower SAE 75W-140 Full Synthetic Gear Oil 1 QT amzn.to/32qgiIQ
Mopar Fluid Limited Slip Additive - 4 oz. Bottle amzn.to/2EsMTFL
Permatex 81182 Gear Oil RTV Gasket Maker, 3 oz. amzn.to/34wmeTb
Lube Locker LLR-D44HD amzn.to/3jf4Mqw
Differential Plug amzn.to/374CbBf
Brake Parts Cleaner amzn.to/3gxEQV3
Tools used:
DEWALT 60V MAX 2 Battery FLEXVOLT Grinder Kit amzn.to/2Q1ECdW
Dewalt 1/2 Drive 20 Volt Impact amzn.to/3f1lO9V
Craftsman 3/8-Inch Drive Flex Head Quick Release Ratchet amzn.to/2Z0ojnq
Oil Catch Pan amzn.to/3gttXnp
Gasket Scraper amzn.to/3hwSPfh
Wire Cup Brush for angle grinder amzn.to/2YwSBgG
Wire Brush amzn.to/3ll7H2w
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Disclaimer:
FYI if you click any of the product links above and end up purchasing anything I MAY get paid a small commission at no extra charge. This is one of the ways you can support the channel. Your support helps me bring out more content for all of you. Martinbuilt assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from the information contained in this video is the sole responsibility of the user and not Martinbuilt. Martinbuilt cannot guarantee against improper use or unauthorized modifications of this information.
#martinbuilt #jeepgrandcherokee

Пікірлер: 279

@OneCarGarage777 3 жыл бұрын

man over the years you have been a wealth of knowledge. ive been building my wj off and on for a few years now, and even on tasks that ive done before such as this one I always check out your channel because you cover everything so specifically. thanks for the work and effort you put into your channel just know there is a multitude of WJ owners that appreciate you!

@martinbuilt 3 жыл бұрын

Thank you, Mark I really appreciate that. I needed to hear that especially after some crap I got from my last video, accusing me of using clicked bait.

@dancook4371 2 жыл бұрын

I will second that comment you are the only one i go to before i lay hands on my 2004 WJ

@nate4036 2 жыл бұрын

@@martinbuilt have you thought about doing the pressure mod on the back vari lok? Essentially pulling it out, pulling side cover off and locking the ball seat under the reed. It’ll still drive smooth but locks up more like a Detroit truetrac. It’ll still bleed off and behave like an open. Might be fun, especially in your street performance build.

@jovangrbic97 Жыл бұрын

@@martinbuilt 04' service manual specs 41Nm/30 ft lb for diff cover bolts, and reason to go only 15 ft lb, because of the Al?

@reaper432 3 жыл бұрын

Hey im new to the channel but i appreciate videos like this. Im getting into the world of cars and hope to be a mechanic one day. as such part of it is keeping my car running and right now thats servicing my leaky front diff. very informative, very helpful.

@damoncaravanman 2 жыл бұрын

It has been 6 years since I have done this to one of my WJs and I need to again, thanks for the refresher. Great Vid!

@martinbuilt 2 жыл бұрын

You are very welcome ☺

@joeg5400 Жыл бұрын

Dude you have the best videos. Extremely clear and concise.

@martinbuilt Жыл бұрын

Thank you I really appreciate that. I'm glad you like them and find them helpful.

@zio2485 3 жыл бұрын

I'm getting new tires this week, and will change my diff and transfer case fluids. I am getting that chatter in the rear when I turn. Again, Martin, you are the GURU

@kypatriot3625 3 ай бұрын

Thanks Martin! I just noticed by chance that the entire inside rear wheel on my WJ GR was wet. Axle seals already replaced, but diff was DRY! I've got more work to do, but will eventually do what you did in this video!

@Tao_Peace 2 жыл бұрын

Super great video!!! I just bought a 2000 Jeep Grand Cherokee Limited from my brother. Heaven knows he probably never changed the Differential. Also, before your video I thought it had a drain and fill plug. This is good stuff! Thanks again!

@martinbuilt 2 жыл бұрын

Thank you glad you liked it and found it helpful. Congratulations on purchasing the JGC. Yeah most vehicles probably go through their entire life and never have the differential fluid replaced.

@lonnymeloon3914 2 жыл бұрын

Great video!! I changed out the rear diff fluid on a 2003 Grand Cherokee Laredo and there were two tags: the gear ratio tag on the driver's side and the gear oil weight tag on the passenger. Thanks again for the great vid.

@martinbuilt 2 жыл бұрын

Thank you 😊 I'm glad you found it helpful 👍

@michaelmccoy6831 Ай бұрын

I have a 12 volt suction pump that I use to draw the old oil out of my boat engine at the end of each season. For my Grand Cherokee and other axles that I change oil in, it comes in really handy -- pop out the plug, insert the 3/16" diameter hose and let it suck all the oil out. Takes less than 5 minutes. Use any empty gallon container and kindly recycle. Then, use the pump in reverse to fill the housing with new oil. No mess, no fuss, no other tools except a screwdriver to pop the plug out. 15 minutes total time and nary a spot of grease on the hands. I actually don't even have to jack the vehicle up or mess with the anti-sway bar. And the pump works great for automatic transmissions as well. Just make sure the suction hose is longer than the dipstick, suck out all you can and fill with the same amount of new fluid. Top up if necessary.

@martinbuilt Ай бұрын

Thanks for your input it must be similar to the one I've got a link here for amzn.to/4eNPC9k

@doalex2085 3 жыл бұрын

Thanks for the reminder I have never done it on my 96 Cherokee. Geter done Doug

@martinbuilt 3 жыл бұрын

You can do it!

@LZDEN 3 жыл бұрын

very nicely done Martin. great video as always my friend.

@jamesdewer 2 жыл бұрын

Thanks for saving me a bunch of time. Martin! Every time I watch one of your videos I want to go to my garage and caress some tools. Jacked to do some mods this weekend!

@martinbuilt 2 жыл бұрын

Good to hear that I inspire you to get something done...😆 Now I wish that would work for me.😁

@natebrown5387 4 ай бұрын

Holy cow every 12k miles. Awesome video.

@martinbuilt 4 ай бұрын

I'm glad you liked it and found it helpful thank you for watching. I think it's the additive that's really important if you wanted to you could probably siphon off 4 oz of fluid and replace it with the additive.

@amerixantrash3620 3 жыл бұрын

Best video yet on this process. Thank you!

@martinbuilt 3 жыл бұрын

Wow, thanks! Glad you enjoyed it!

@markh.2899 3 жыл бұрын

Thanks, Martin, I really learn a lot from ya!

@martinbuilt 3 жыл бұрын

Glad to hear it, thank you!

@orlandoreillo20 3 жыл бұрын

awesome every video is very helpful save me lots of money doing my own repairs

@martinbuilt 3 жыл бұрын

Glad you found it helpful.

@zibixu69 3 жыл бұрын

Thank you :) greetings from Poland !

@martinbuilt 3 жыл бұрын

You are very welcome.

@Nexter000 2 жыл бұрын

Hello from France, nice work! You work well with care! I really appreciate!

@martinbuilt 2 жыл бұрын

Hello 👋 I'm glad you liked it and found it helpful 👍 😊

@trentmoseley 3 жыл бұрын

Having your tank moved up definitely helped too I see. Great video. Always great videos. Thanks so much

@martinbuilt 3 жыл бұрын

Thanks 👍yea, loving the fuel tank tuck

@revolutionday1 3 жыл бұрын

All one need do is jack the body up, and let the axle(s) droop. *shrug*

@ibberman 3 жыл бұрын

I have a 2004 I would like to do, how do you get too it with the tank covering the rear ?

@chocolingo7423 3 жыл бұрын

Good stuff sir. Just got a 2003 GC Laredo... last owner did not do much maintenance... just going thru the check list 👍🏽

@martinbuilt 3 жыл бұрын

Right on! Make sure you change the Transfer case fluid kzfaq.info/get/bejne/j82eeNyZ2r7Tf40.html

@s.b5412 3 жыл бұрын

I wish you good health and hapiness man ..

@martinbuilt 3 жыл бұрын

thank you, and the same to you.

@marcoantoniogarciabautista 3 жыл бұрын

Mártin, another greath greath job, i make in my Grand Cherokke WJ. THANKS BRO.

@martinbuilt 3 жыл бұрын

Thank you Marco

@expendablesblackcrow1796 3 жыл бұрын

Cool danke das ich wieder was lernen durfte. Jetzt mache ich dass selber. Schönes Wochenende und lg Daniel Förster aus der steiermark👌👍

@martinbuilt 3 жыл бұрын

thank you, I will have a good weekend.

@expendablesblackcrow1796 3 жыл бұрын

@@martinbuilt tahnk you tu👍

@zizoclever 7 ай бұрын

Thanks for the help sir. Amazing knowledge. God bless you.

@martinbuilt 7 ай бұрын

Thank you. I really appreciate that. I'm glad you liked it and found it helpful. Thanks for watching.

@zooba1974 5 ай бұрын

Awesome video!!!

@martinbuilt 5 ай бұрын

I really appreciate that. I'm glad you liked it and found it helpful. thank you for watching 😁

@davidnunez8364 3 жыл бұрын

Excellent!!!!!!!! You have one more subscriber. Thank You!

@martinbuilt 3 жыл бұрын

Thank you!

@dinopereira5957 3 жыл бұрын

Congratulations; I need thist. Thanks

@martinbuilt 3 жыл бұрын

you are welcome

@AndreiRebegea Жыл бұрын

You are a legend! Thank you, sir!

@martinbuilt Жыл бұрын

Thank you. I really appreciate that.

@charliedee9276 3 жыл бұрын

I came up with an easy way to drain and fill the axle without even taking the cover off, or if you are taking it off it makes it MUCH easier getting the fluid in and out. I use an AC vacuum pump to extract it and air pressure to fill it. Picked up a 64 oz Ball Wide Mouth Mason jar with lid and band and two 3/8" barbed bulkhead pass through fittings and installed the fittings in the lid. Now to extract the fluid I put a hose on one fitting that will go into the axle housing through the fill hole, I cut an angle on the end going into the axle. On the other end of the same barb put a piece of hose that reaches the bottom of the jar, it will be inside the jar. On the other fitting run a hose to a vacuum source, I use a HF AC vacuum pump. The vacuum created in the jar will pull the fluid right out of the housing, quite quickly also. You will have to modulate the vacuum power, I do by squeezing the hose. To put fluid back in it is the same setup with the exception of pressurized air instead of vacuum. Fill the jar with the fluid you want in the housing and apply air to the same hose the vacuum was applied to. Again be careful, it doesn't take much pressure to do the job, a couple pounds will do it. The pressure applied to the inside of the jar pushes the fluid up the other hose and into the housing, again very quickly. I made a custom box to fit the jar in to avoid breakage of the glass. This method is so easy it almost makes a fluid change fun. A trick I learned working marinas, extraction was the only way to change engine oil on large boats with inboard V-8's.

@martinbuilt 3 жыл бұрын

Thank you for sharing

@charliedee9276 3 жыл бұрын

@@martinbuilt Paying forward from one backyard wrench to another.

@Buddy43 Жыл бұрын

Great Video ! IT helps me a lot ! Thank you .

@martinbuilt Жыл бұрын

Thank you. I really appreciate that. I'm glad you liked it and found it helpful.

@joystickricksherrell774 3 жыл бұрын

Thanks for what you are doing

@martinbuilt 3 жыл бұрын

My pleasure! 😊

@danhambrick6331 3 жыл бұрын

Nice job Martin....

@martinbuilt 3 жыл бұрын

Glad you enjoyed it Dan, thank you.

@jasonconnell5777 2 жыл бұрын

I can’t believe every 12000! I’m at 300000 miles on a 2004 and never been done I sure will now though. Ty so much

@martinbuilt 2 жыл бұрын

Yeah that is kind of typical for many owners to never change their rear axle fluid.

@jasonconnell5777 2 жыл бұрын

@@martinbuilt well I’m going to now hoping to get 500000 out of it ! Be well

@kosta2177 3 жыл бұрын

Perfect video

@martinbuilt 3 жыл бұрын

Glad you think so!

@liveFee_OrDie 2 жыл бұрын

Good video 👍 thank you very much 🙏

@martinbuilt 2 жыл бұрын

Thank you, I'm glad you found it helpful.

@scarymovie636 Жыл бұрын

Thank you!

@martinbuilt Жыл бұрын

Glad you liked it and found helpful.

@michaelchance9405 3 жыл бұрын

Very good post...if you will spray around the diff cover with carb cleaner (or acetone) it will help greatly in getting that cover off. That way you can lessen risk of deep scratches in that aluminum case from case hardened steel screwdrivers, etc. Take my word for it, the vari-lok rear end needs the Mopar additive. Regards!!

@martinbuilt 3 жыл бұрын

Great tip, thank you.

@kevinhill7742 2 ай бұрын

From Kevin knew you in west palm @ironhorse had my a.c. system checked checking up on this big condenser thinking your custom modification will work see ya at the spheer

@jonburton8054 Жыл бұрын

Well... Thanks Jon

@martinbuilt Жыл бұрын

You're welcome ... Martin

@JAYZIGGY5 7 ай бұрын

Thank you Levon Helm! Lol sorry I had to. You remind me of the great Levon. Anyway, I'm going to give this a go on my 02 Sunday. Man I sure hope it's as easy as you made it look!

@martinbuilt 7 ай бұрын

I've been called Harrison Ford and Bob Ross, probably because of the way I talk. And now Levon. I had to check out a video of his where he was interviewed with david letterman. The only thing that may give you a little trouble. Is the fuel tank being in the way I did a gas tank tuck where I raised the fuel tank 4 inches. Thank you for watching.

@JAYZIGGY5 7 ай бұрын

@martinbuilt Bob Ross? Lol I don't know what he sounds like but you need a big Garfunkel hairdo to be that guy. Here's kinda the age of Levon I was going off of. kzfaq.info/get/bejne/Zt-litqVtt7bZmw.htmlsi=v1jqwP-9wIsswHnN Anyway, I looked at mine and you're right about the tank. That's gonna be a real pain I think. I was going to do it at work yesterday because it's heated in there and they have a lot more tools than I have at home but I just didn't feel up to doin it. Maybe the weekend after Christmas I'll give it a shot. I'm not looking forward to it I can tell you that. Amazon no longer sells the mopar additive so I got 2 bottles from a jeep dealer. Man your WJ so much nicer than mine! You've done a lot to it. Mines pretty stock, 126k miles, airbag light is on, driver side hearted seat stopped working last winter, one of the front right speakers is blown, it runs on oil. I don't get that. It doesn't leak, doesn't smoke and it's always low on oil! I'm not much for working on cars but everything new and used these days you gotta be a millionaire to buy! Ridiculous. I'm hoping to keep it getting me to work and back for at least another year. It sure is great in the snow but doesn't look like we're gonna get any this year in Chicago which is fine with me! Thanks for the help. I'll be watching the video again as I'm cursing up a storm under my vehicle I'm sure.

@JudjinYevgen 3 жыл бұрын

Thanks

@mikefeil9800 2 жыл бұрын

Martin you are the man! Thanks for all your videos you have helped me out big time. I have a question on the front differential, do I need the additive in front if I need it in rear differential. I have AWD and thanks for your time.

@martinbuilt 2 жыл бұрын

Thank you Mike I appreciate that. Yeah if you have the Vari lok in the rear, you'll definitely haven't it in the front as well, and you only need 2 and a 1/2 ounces of the friction modifier for the front differential. Thank you for watching 👀

@8bitsamurai6 Жыл бұрын

Should i be concerned if both axels seem to have lil bit of diff fluid on the bottom. Just bought a wj. Guy was good at maintaining so not sure if he just serviced them and fluid was left or they are sweating a lil bit.

@tpb1717 Жыл бұрын

Is the additive in the front end, too? My manual doesn't specify that, and I asked the dealer, and they said only the rear...any idea what's the right way going about it?

@14hope Жыл бұрын

Thanks Martin. Great information.

@martinbuilt Жыл бұрын

You're very welcome. I'm glad you liked it and found it helpful.

@nateserpico2886 Жыл бұрын

Did you allow the Permatex sealant to set up before you fully torqued the bolts or did you just torque to spec right away?

@damibabygod4761 Жыл бұрын

Hi, I've got an 04 with quadra drive and tried spinning the rear like you did with the cover off and it kept spinning the opposite direction after 30 seconds of turning and the gears wouldn't spin on the inside. Can it be because there's no fluid in it or do I have to put in drive for it to engage?

@rombierto 2 ай бұрын

Can I simply add fluid if below the indicator hole?

@mrmo666 3 жыл бұрын

Every 12k? That's a bit frequent. Think I'll just do it every 20 to 24k. Good video Martin, now you got to change the front axle fluid.

@martinbuilt 3 жыл бұрын

yes, I think 12k is too often 20 to 24K sounds good to me, I did the front years ago but only because it was leaking, I'm sure it's time to do it again.

@jgcruisers 3 жыл бұрын

Hey Martin. There are 2 ID tags in the diff. The 1 you have and the other one has the 75w-140 syn/72 oz + FM 4 oz

@martinbuilt 3 жыл бұрын

nice, so confirms what I was say about the amount of fluid and also tells you that you have a Varilock differential.

@johnfeather5405 Жыл бұрын

Hey Martin, I have a noise only when I do a slow turn. Changed the fluid and it still is doing it. Do you think it can be the axle seals? Thanks

@ctdope Жыл бұрын

Hi Martin. Is it possible to install the Verilock rear end in the Quadra Trac 2, or does it only work with Quadradrive? I actually put the additive in both my diffs, not realizing it's ONLY for Verilock which I don't have. I spun my wheels, and they stayed moving opposite to each other, was sad. Thank you.

@ianmoone17 2 жыл бұрын

Hi, so basically you fill the differential housing till the oil reaches the filling hole.? Asking because just bought my first jeep wj 02 and decided to change the fluids. The seller was ok and all but better be on the safe side.

@Bulletz4Breakfast13 Жыл бұрын

Hey MartinBuilt, I have a 2002 Jeep Grand Cherokee Laredo 4.7L V8 (VIN-N) standard output engine. What fluid do I use for the Rear, front differential and transfer case? I hear the Dana 44 requires (75W90/80W90 with normal use) and 90W140 with heavy towing but I'm not sure what my model has.

@Daytona-fr7fx 3 жыл бұрын

Martin, I have an '04 WJ, quadra trac II, 4.7 v8. The clutch discs in the rear differential are shot. The shop says that the parts I need are discontinued through Dana. Do you know of a suitable replacement? I know you need info like gear ratio, is it a Dana 35, or 44 axle. I just wanted to get your thoughts, as the shop says the only way to replace it is with a used axle, or ARB Locker.....I'm not saying I know more than them, since that is their job, but as many WJ's and jeeps in general that are still out there 17+ years old, there has to be aftermarket replacement parts.

@Rooster1172T 11 ай бұрын

Doesn't it state to only finger tighten for an hour before tightening completely and allow 24 hours to cure before filling?

@studiomb8630 11 ай бұрын

Which oil for a Laredo 2.7 crd wit quadra trac? Thanks

@allensnook7760 3 жыл бұрын

Glad to see you taking care of the black beast as always martin.i see ur really enjoying that tank tuk!!now more than ever no more soggy bottom blues!!hey just outa curosity did you think or look into that tramsmission dip stick slop i have that i mentioned! Before.yours may be tight but mines loose and protrudes out of tube.worried about dust and fluid loss!!!!snookie pa.

@stonewallcrippen2237 3 жыл бұрын

I have this same problem with the trans dipstick tube...no matter how you orient the thing it pops itself out of the tube about an inch. I used one of my wife's stretchy hair tie things (scuncci?) to hold it in. They last about 2-3 months before the engine bay environment destroys the rubber, but it keeps everything sealed up

@martinbuilt 3 жыл бұрын

I wounder if the vent for the transmission is plugged or pitched and this is causing the dip stick to come out.

@allensnook7760 3 жыл бұрын

@@stonewallcrippen2237 yeah its irritating at very least!!i was thinking of cutting top end somehow and shorting and weld back.or maybe one of those truckers screw rubber tops integrated, if you can find one small enough!!!hard to believe martin hasnt rebooted or designed something better for this one.dont think the scoonch is longterm fix but works temp.thAnks,snookie pa.

@allensnook7760 3 жыл бұрын

@alfredolopez-bruce6199 3 ай бұрын

very informative video on changing the differential gear oil, one question, i am not sure when the last time was I changed the gear oil, but is it ok to just add oil rather than replacing it?

@martinbuilt 3 ай бұрын

If it is a true limited slip like the one I described in the video I would recommend changing the fluid and adding the additive. If it is a conventional open differential I guess you can get away with just adding, I assume it is leaking a little bit if you need to add.

@bryanthompson4323 3 жыл бұрын

I found out that if you have the factory tow package it comes with a dana 44 with a 3:73 ratio with limited slip. My 01 2wd with a 4.7 has the the tow package and has this axle.

@martinbuilt 3 жыл бұрын

thank you for commenting.

@dennisharper1896 2 жыл бұрын

Hi Martin. Great video but I have a question. Both Valvoline and Royal Purple 75W140 synthetic gear oil claim to have a friction modifier. I used the Royal Purple on my last gear oil change for my '99 WJ with the Dana M44 limited slip differential, but after about 5000 miles I'm hearing the groan in some turns. Although they claim to have a friction modifier, do you recommend the full 4 ounces of the MOPAR modifier be added. I noticed you did when you used Valvoline; just wondered if you recommend 4 ounces with the Royal Purple too. Thanks.

@martinbuilt 2 жыл бұрын

Yes I recommend a full 4 oz of the Mopar friction modifier. The Dana 44 in a Jeep Grand Cherokee is not a typical limited slip and requires the special friction modifier.

@DS-wt7ul 3 жыл бұрын

Nice work. Is that magnet on the cover OEM? My 9 1/4" on the Ram has a magnet in the housing. I used a Fel-Pro gasket on mine. It makes removal so much easier. No leaks after 3 years. Im almost due; with my usage I go 30k miles on diff fluid

@martinbuilt 3 жыл бұрын

yes that magnet was OEM

@victormendoza6306 Жыл бұрын

Hi I’m new in your channel I liked your video I have a grand Cherokee 2004 and my 4x4 it’s hard to change what type of oil or other liquid go to make it smooth? Thank you very much

@martinbuilt Жыл бұрын

Hello Victor, I'm glad to hear you like and subscribe to the channel. Good to hear you found the content helpful.

@ryanmartinage 2 жыл бұрын

I wanted to post up that I had my fluid done at a shop and they thought it was ok with the oil having the lsd additive in there. Instantly started making noise. Tried adding some OTC additive and it didn't like it still. I bought the mopar additive to redo the service myself. I noticed it was more viscous than the otc brand from the auto parts store.

@martinbuilt 2 жыл бұрын

This is one of the reasons I like doing things myself. That shop should refund your money.

@ryanmartinage 2 жыл бұрын

@@martinbuilt I had the ambition but not the time. I was disappointed especially for what they charged.

@felicitous48 Ай бұрын

I watched your video, then looked at my rear end. I was thinking how do you have such great access to your cover!? Did you take the tank or tank protection off? Then I watch it again. You must have put your jack stands on the frame so that the axle would hang down creating more access to the diff cover bolts! Thanks for the great vid!! Question: Which WJ do you think is the best one? 2008? Trim? Runner up? You could do a video on this!!

@martinbuilt Ай бұрын

Yes placing jack stands on the frame and letting the rear axle hang lower will definitely help but I believe I did the gas tank tuck prior to doing this video which raised the fuel tank 4 inches. Well I may be a little biased but the 04 WJ is definitely my favorite in the limited edition I only wish it had the 08 or newer 4.7 for the added horsepower. I really feel that the 99 through '04 Jeep Grand Cherokee is one of the best body styles especially compared to the WK that came after. Thank you for watching.

@felicitous48 Ай бұрын

@@martinbuilt I agree. I like the 99-04 body style.

@revolutionday1 2 жыл бұрын

Went with some cheap ass WalMart "Super Tech" 80w-90 in my front diff (Selec-Trac) and the people in the forums went batshit, because I had the axle tag on the rear saying 75w-140, which I did actually use (Valvoline synthetic) in there. 🙃 I came to this conclusion by reading the same passage was was highlighted in this video, from m original owners' manual, even though it was a 2002 model. Should I have put 75w-140 in BOTH the front and rear diffs?

@MrJamesgreen123 3 жыл бұрын

What wheels you got on there? My oem 5 star chrome rims are delaminating and just going to crap. Ive always loved your rims.

@martinbuilt 3 жыл бұрын

Here is a link OE Wheels 20 Inch Style Gloss Black 20x9 Rim amzn.to/2EV6Fan

@nateserpico2886 Жыл бұрын

BTW Royal Purple has the friction modifier already in it, its noted on the label.

@martinbuilt Жыл бұрын

Their friction modifier is not the same as the one from Mopar. I would highly recommend you use the correct one.

@nateserpico2886 Жыл бұрын

@@martinbuilt I am going to add the Mopar one just in case

@socemdogbrewingandgastropu8288 3 жыл бұрын

Hi Martin, I have a 2000 grand Cherokee 4WD and checked the dealer with my 8 digit VIN. Did you do the same. I have thought I had the same need as you, but not according to my vin.

@martinbuilt 3 жыл бұрын

here is a great website where you can get a build sheet for your vehicle, it is case sensitive so enter the VIN using capital letters. Chrysler Build Sheet fcacommunity.force.com/RAM/s/equipment-listing

@frankherrera1519 Жыл бұрын

Nice and informative! Thanks for doing this! I’m looking to possibly doing this myself. Along with your transfer case video on my 99 JGC 4.7 limited. What’s the brake cleaner used? It opens to multiple on your link description. Thanks

@martinbuilt Жыл бұрын

Can't recall exactly what brake cleaner I did use but I wouldn't use anything expensive, go cheap.

@frankherrera1519 Жыл бұрын

@@martinbuilt another question. If using the HD lube locker do you need the other stuff you use in the tube? Or just the locker. Thanks again

@jovangrbic97 Жыл бұрын

04' service manual specs 41Nm/30 ft lb for diff cover bolts...

@johnroberts3824 3 ай бұрын

I saw that too, but 30 ft-lb on those little bolts seems excessive. It's only a cover plate, and the housing is aluminum. I'm doing mine right now, and I'll start with 15, then maybe try 20 and see how it goes. When I broke loose the bolts, it didn't take much torque. UPDATE: Torqued it to 30 ft-lb no problem.

@JoshuaLehn Жыл бұрын

Is this correct? Same process for both rear and front, except: Front=2.5oz mopar additive, 1.25 qts 75W-140. Rear=4oz mopar add., 2 qts 75W-140?

@martinbuilt Жыл бұрын

Yes that is correct for these vehicles the procedure is the same. Thank you for watching.

@VMAFIA 2 жыл бұрын

So two quarts and 4oz of additive for the rear and two quarts and 2.5oz for the front. Having a hard time finding exactly how much diff oil to put in the front

@mcplutt 2 жыл бұрын

1.2 quarts for the front.

@petertarantelli 2 жыл бұрын

Is the magnet there to ‘pick up’ and hold any stray metal pieces/shavings?

@martinbuilt 2 жыл бұрын

Yes, this can tell you the condition of the rear axle and if there are any problems. This will also keep the metal shavings from damaging bearing and gears.

@pascuionut8655 6 ай бұрын

So i need to add the additive ONLY IF i'm also towing? If i never tow, does it mean i can only fill it with plain oil? Thx.

@martinbuilt 6 ай бұрын

What I said was if you have a vari-lock you need to use the additive. Check the VIN number on your vehicle to see if you have one.

@abduldayemamer2899 2 жыл бұрын

I need your help. Own the Grand Cherokee 99. 8V 4.7l and 3-step conversion box we face the problem of the acceleration after 120 kilometers per hour crashes I have the front axle not this time and I have many times changed the axis please reply 🙏

@martinbuilt 2 жыл бұрын

3-step conversion box?

@nelsonclark5645 2 жыл бұрын

Very helpful but is it 4oz of friction modifier per quart of diff. lube?

@martinbuilt 2 жыл бұрын

Thank you, it's 4oz total for the rear diff and 2.5oz for the front.

@LadyJesterSurfer 3 жыл бұрын

Hey Martin, met you one time at the car wash. Question, what motor oil weight are you using? Just curious as I got an 03 Overland with a 4.7HO in the same climate as you. I've been reading a lot of threads regarding the proper weight for the lash adjusters. Thanks

@martinbuilt 3 жыл бұрын

Yeah, I remember you, nice to hear from you. I have been using 5w30 Full synthetic I have the non-HO engine but during the summer months, I think I should be using 10W30. The HO engines recommend 10W30.

@LadyJesterSurfer 3 жыл бұрын

Thanks Martin, yep, that’s what I’ve been running in it.

@phennig2003 3 жыл бұрын

Hi Martin, I am removing my right rear axle shaft and putting new bearings on. When I reinstall that shaft do I have to put anything on it like oil or anything or just go ahead and put it in tighten everything down and fill it up with differential. Thank you and I really appreciate your channel I learn a lot from it as well and I've told some people about it on some of the forms.

@martinbuilt 3 жыл бұрын

Yes reinstall the bearing, you can put a small amount of oil on the bearing but it should get oiled as you refill the diff and put a good film of grease on the seal so that the axle doesn't damage it as you reinstall it.

@phennig2003 3 жыл бұрын

@@martinbuilt thank you. I found someone to press it back on. I just need to get that outer ring out of the axle tube. Any suggestions? Then once pressed just slide shaft back in and tighten down and fill correct?

@gouranga6646 3 жыл бұрын

@@phennig2003 We did get one out by using two crossed larger wrenches as levers and simultaneously hitting them with hammers on the ends.

@Tyz16Gryphon 3 жыл бұрын

Hi Martin, Great video! Do you think that it's too late to change my differential fluid? My 2000 jeep WJ is at 270 000 km. Im not sure if previous owners did it or not. Just curious if it's like transmissions where changing it now could have some negative effects or should I go ahead and change it?

@martinbuilt 3 жыл бұрын

Thank you, It's never too late, go ahead and change it.

@Tyz16Gryphon 3 жыл бұрын

@@martinbuilt Thank you for the quick response. I will be changing it. Also would you say I should do the same for the transfer case fluid as well ? Thanks in advance.

@frankherrera1519 Жыл бұрын

Also is this the same technique and process and procedure for the front?

@martinbuilt Жыл бұрын

Yes it is basically the same. Thank you for watching.

@dironizareyes596 2 жыл бұрын

i had a clunk and grinding noise from the front recently. My mechanic disconnected the first driveshaft and it went away. i never use the selec trac so i dont think the transfer case is worn out i have a 242 transfer. could it be a malfunction with the transfer case switch?? how many sensors or switchesare on the 242np. i have a 2004 grand cherokee laredo with trail ready badges 155k on the clock. 4 1/2 inch lift with 265/70/17 tires. please help!!!! thanks in advance. btw when i select it into full time 4 x drive theres no light indicator on dash when i select other like 4 part time i can see the indicator light on dash is that normal?. i think it worked fine in full time 4x. i only notice the problem in full time 2 wh dr. what could it be?? usually happens after driving 20-30 mins

@martinbuilt 2 жыл бұрын

1st, I would check your owner's manual to see what lights should be on when selecting full-time or part-time 4-wheel drive. Make sure you never drive on dry ground like pavement when selecting part-time 4-wheel drive as this could damage the transfer case. Have you checked the fluid levels?

@nottito 3 жыл бұрын

Thanks Martin. I have it apart right now and the carrier will not spin at all. My tires initially rotate in opposite directions until the diff engages and then it is just locked up and will not rotate. I found zero metal in the diff case or oil and there is only a super fine paste on the magnet. What should I do from this point? Is it possible that the fluid / friction modifier might be the only cause of this? Seems unlikely

@nottito 3 жыл бұрын

This is a mild form of self immolation. The answer to my previous question is to simply shift it into Neutral! My bad!

@martinbuilt 3 жыл бұрын

@@nottito glad to hear you figured it out.

@jacobijones8304 Жыл бұрын

My spare tire compartment is way lower than yours so I can’t even get to most of my bolts , how can I get to them ?

@martinbuilt Жыл бұрын

You may need to disconnect the shocks at the axle and then raise the body and that should lower the axle to the point where you can get to them. My Jeep is actually lowered 1"

@bolivarrosado8597 2 жыл бұрын

Hy! How many spline have this differential on his axle? My Jeep GC is 2003 with V8 (4.7L) engine!

@martinbuilt 2 жыл бұрын

That should have a 30 spline axle

@HelmetDruler69 3 жыл бұрын

Doing my front diff right now. Boy is it tough to reach in there. Not looking forward to the rear. That fuel tank tuck sure does he’ll

@martinbuilt 3 жыл бұрын

yes, the fuel tank tuck probably helped. You raise the Jeep from the frame, disconnect the shocks and the rear axle will drop more for better access.

@lstruggy 3 жыл бұрын

Generally does the rear axle only take 2 qrts? doing this soon and I wana make sure I buy enough gonna do rear & front so I bought 4qrts two for each diffs at $35each (mopar75/140) it’s a 07 jgc laredo v6 3.7 btw if I don’t have acetone what’s another alternative 70% rubbing alcohol works?

@martinbuilt 3 жыл бұрын

4 quarts will be enough. Once you have removed all gasket sealer, rubbing alcohol would be okay to remove any residue.

@lstruggy 3 жыл бұрын

@@martinbuilt awesome 👏🏽 ty for the reply sir! 🤙🏽

@highbimmers1090 9 ай бұрын

Martin, Quick question. The fluid you are using states " Contains Limited - Slip Additive" on the bottle. Is this fluid correct even with the addition of Mopar LSP Additive? Thanks!

@martinbuilt 9 ай бұрын

It is a different fluid required from Mopar. It is not the same attitive found in that bottle. This is why I added the Mopar additive.

@highbimmers1090 9 ай бұрын

Ahh, thank you Sir!!!

@tylerdubois9020 3 жыл бұрын

Hey Martin, looks like tucking that tank gives you a nice amount of clearance. If I just disconnect the sway bar and link, have the WJ supported on the frame, can I lower the axle with a jack to get more clearance? Going to be installing the Aussielocker on my Dana 44A soon and I need to remove the carrier to remove the cross shaft. Thanks

@martinbuilt 3 жыл бұрын

yes the tuck helps some and sure looks better, just lift the Jeep at the frame and you should be okay. Why do you need to remove the carrier to get the cross pin out?

@tylerdubois9020 3 жыл бұрын

@@martinbuilt Going to tackle this today, I will report back with findings for people in the future if they decide to install on the Dana 44A any lunchbox locker. I am going into this assuming that there will be interference between the ring gear and the cross pin and that it will need to be removed in order to remove the spider gears.

@tylerdubois9020 3 жыл бұрын

@@martinbuilt So i pulled the cover, and you can easily remove the cross pin without needing to remove the carrier. I decided to remove the carrier to check the bearings and clean out the assembly, plus I didn't have much room to work on the ground. If I had a hydraulic lift (maybe one day haha), i would have just left it. So in recap, you can install a lunchbox locker in the Dana 44a WJ rears without the need to remove the carrier, cross pin does not interfer with the ring gear.

@martinbuilt 3 жыл бұрын

Glad it all worked out.

@gregj.gotham4402 3 жыл бұрын

Great video as all of your videos are. I have a 2002 open diff, can i install veri-lok diff in it from the 2004 HO in the junk yard ive been getting many parts from? Ill be there tomorrow to remove the HO heads! Ill check the diffs while there but im in need of more in opinion from you on this before i buy the veri-lok. Thank you. you have the best WJ videos on youtube.

@gregj.gotham4402 3 жыл бұрын

I was thinking of getting both front and back veri-loks. I have a 242 J transfer case, automatic transmission, select track shifter for transfer. Be kind im a newbee.

@martinbuilt 3 жыл бұрын

@@gregj.gotham4402 yes, front and rear, that would be a great upgrade. You're going to be busy with the heads and the axles, bring some help.

@gregj.gotham4402 3 жыл бұрын

@@martinbuilt im plaining on just the diffs not the whole axels. Is there a reason you say axels??? Wont the diff fit into the open dana 44 or are the axels different in spline number my axels i believe are 30 spline. A lot of conflicting information on google.

@martinbuilt 3 жыл бұрын

@@gregj.gotham4402 Do you have the experience to set up the gears once the differentials have been installed? If not I would swap the whole axle.

@gregj.gotham4402 3 жыл бұрын

@@martinbuilt well I’ve worked my life as a mechanical installer of industrial equipment HVAC, 8 yrs in engineering for Carrier Corp in their E,R,D retired now. Although i’m not a car or truck mechanic i’ve built engines to high performance on my Harley Davidsons. I believe i can do the carrier switch over if I have correct info needed. If you can provide me with any tolerance information or point me to a site where i can find the info i’d greatly appreciate that. Your video’s are the best on youtube.

@zineulia 3 жыл бұрын

My jeep does not have vari lock. Do I still need the additive? Or can I just use 2 bottles of the 75/140 ?

@martinbuilt 3 жыл бұрын

If it is not a varilock the owner's manual recommends 80W90 weight gear oil.

@keviiiboo7460 2 жыл бұрын

@@martinbuilt Mine has “Trac-Loc”. Can I use 80w-90. I don’t tow.

@keviiiboo7460 2 жыл бұрын

So if you don’t have a Vari-Loc then both wheels would turn the opposite direction? How do you know if you have a limited slip? Thinking about doing this to my car. Just want to make sure I get the right fluids.

@martinbuilt 2 жыл бұрын

Enter your vehicle VIN on this website, it will give you all the info like Vari-lok or open. Chrysler Build Sheet fcacommunity.force.com/RAM/s/equipment-listing Enter the VIN as it appears, case sensitive.

@keviiiboo7460 2 жыл бұрын

@@martinbuilt thanks!

@miguelaguilar3169 3 жыл бұрын

I tough use a gasket !! 😲

@revolutionday1 3 жыл бұрын

They are available, especially from LubeLocker, but I wasn't about to pay $50 for a pair of them, when I don't plan on doing this job more than maybe once or twice in the time it takes the rest of my Jeep to finish rotting from rust around the axles. LuLz

@genrics.5466 3 жыл бұрын

Hi, Your doing great and you have nice car. I have a question. My 2002 grand Cherokee when turning sharp rubbing noise at back. Do you know what is the problem. Just let me know. Thanks

@martinbuilt 3 жыл бұрын

That doesn't sound familiar, maybe something with the brake or it could be the fluid needs to be changed.

@genrics.5466 3 жыл бұрын

martinbuilt what fluid! I will take look the break fluid. Thank you so much

@martinbuilt 3 жыл бұрын

@@genrics.5466 what I meant to say is that the rear end fluid needs to be changed or maybe something wrong with the brakes, like the rotors and brake pads.

@gunseap 3 жыл бұрын

Good day. My cherokee wj does not have that effect that you do when you turn the wheel that they turn in the opposite direction and then they turn in the same direction I did that test and it does not only turn in the opposite direction. Could it be that my wj does not have the vari lok or is it damaged?

@martinbuilt 3 жыл бұрын

it is most likely has a open differential

@gunseap 3 жыл бұрын

@@martinbuilt but you primed the vari lok pump before running the test. i just saw the manual and i need to prime the vari lok pump first.

@zio2485 3 жыл бұрын

Just 1 question. I have the 2002 Overland. Should I add the 4oz. FM with the Valvoline SAE 75W-140 in the rear? The bottle says it contains FM already.

@martinbuilt 3 жыл бұрын

yes, use the additive the one in the Valvoline is not adequate for the posi unit it the Jeeps.

@zio2485 3 жыл бұрын

@@martinbuilt ty

@briansviolins9376 Жыл бұрын

How can you tell if your rear diff is a Dana44 or Dana44hd? I’m thinking about using a felpro gasket that’s available for the Dana44. It’s a 2004 grand Cherokee limited 4.7 ho with Quadra drive

@martinbuilt Жыл бұрын

All the Dana 44Hd's have have a aluminum center section. But you definitely have the hd model.

@briansviolins9376 Жыл бұрын

@@martinbuilt thanks for the info, I’ll probably just use the paste then . Do you wait 24 hours to allow it to cure before driving? Also, aren’t the bolts supposed to be torqued to 30 pounds not 15?

@tylerpulley2714 3 жыл бұрын

Good morning sir I have a couple questions I Have a Jeep Grand Cherokee 2004 with the 4.7 Engine I don't think that the transfer case lubricate has ever been changed and I think it has the wrong stuff in it but I've been operating with it like this for so long will it hurt me to change it in the long run

@martinbuilt 3 жыл бұрын

I would change the fluid to the recommended fluid here is a link. Genuine Chrysler Transfer Case Lubricant NV 245/247/249 1 Quart amzn.to/2TehFs6

@tylerpulley2714 3 жыл бұрын

@@martinbuilt please forgive my ignorance . Is one quart all that it takes? Also is it the same fluid for the front?

@Al-Fiallos 3 жыл бұрын

Hello Martin. I have a 2004 JGC WJ with Select-Trac, how do you check the rear diff if you have the gas tank in the way?

@martinbuilt 3 жыл бұрын

raise the Jeep at the frame and support this should allow the axle to drop and give you access.

@Al-Fiallos 3 жыл бұрын

@@martinbuilt Brilliant, I will have to try that. I really just want to see if there is gear oil in the diff. I bought the JGC from my son's mother-in-law with 106k and I don't believe she abused it, but it lived in Pennsylvania so I'll have to look at the frame carefully. Thanks for the reply, take care.

@dancook4371 2 жыл бұрын

Do both front and rear diff take two quarts of gear lube ? and only rear takes 4oz of mopar additive and front takes 2oz additive ? But both get two quarts + additive

@martinbuilt 2 жыл бұрын

The front takes 1.25 quarts plus 2.5oz. additive.

@dancook4371 2 жыл бұрын

One more question Martin is it ok to use Lucas 75w 140 synthetic or does it have to be fully synthetic like mobile 1