While servicing the differential on a 2004 Silverado pickup truck, I thought I'd take the opportunity to explain how a locking differential works
Пікірлер: 339
@stopspinskydiving9 жыл бұрын
Look in the glove compartment at the code sticker. If you see G80, then you have the Eaton locking rear dif.
@djdud132Ай бұрын
Super confused my 83 gmc 2500 2wd came with this G80 diff?
@codymoncrief84784 жыл бұрын
Gov-locks actually also have clutch packs inside. Basically when the flyweights begin to move outwards, the first weight actuates a pressure plate that applies the clutches and effectively brakes the two axle shafts before the mechanical latch fully locks the spider gears, yielding a smooth engagement. The clutch system works well for most normal driving and stock size tires. The problem lies in the clutches. With worn clutches, heavy throttle, and/or oversize tires, the clutches are no longer able to effectively slow the axle shafts; this results in the latching action being quite violent. This inadequate braking is responsible for the failure mode of gov locks. The 14-bolt version is quite a beefcake and is very robust, but the 10/12 bolt versions are notorious for failures. If you have one, I highly recommend replacing it at soonest convenience. For a normal street/winter vehicle, an Eaton True-Trac would be perfect. For an off-road or heavily worked truck, a Detroit no-spin would be likewise a good choice. Just my 0.02, take it or leave it.
@voidisyinyangvoidisyinyang8854 жыл бұрын
wow - clutch plates in the diff? amazing - so THAT's why they fail on the 10 bolt? that's what I have. I'm gonna take it easy. haha.
@codymoncrief84784 жыл бұрын
Voidisyinyang Voidisyinyang The locking just creates too much shock to last long for any driver beyond my grandmother.
@voidisyinyangvoidisyinyang8854 жыл бұрын
@@codymoncrief8478 depends on how much of a raging drunk the grandmother is. My great grandmother was a Woman's Christian Temperance Union activist but today's raging grannies probably would trash this diff.
@codymoncrief84784 жыл бұрын
Voidisyinyang Voidisyinyang I can see it: When Karen gets mad that you didn’t let her merge without a blinker, so she hammers it in her lifted Suburban to chase you down. All the fury funneled through that 6.0 Vortec. That baby would blow so violently that the sound would actually drown out her Mariah Carey CD for a second or two...
@lumberjackdreamer6267 Жыл бұрын
@@codymoncrief8478 Yes. But the lock is only at lock speed, either below 6mph or 18mph. At higher speed it’s an open diff.
@MitzvosGolem13 жыл бұрын
In old days we would put ebrake on half way when wheel spinning would transfer torque to other tire and get you out of a rut.
@ericg49152 жыл бұрын
That's a good idea, my differential is open I could try that only problem is my e brake stops both the back wheels. I coukd disconnect one side of the e brake
@MitzvosGolem12 жыл бұрын
@@ericg4915 it works if half pressure . Will overcome brake friction and send power to wheel not slipping
@yupsir7914 жыл бұрын
1 millions views! Great video. I drive my 4x4 silverado in 2wd as far as I can to see the locking diff at work, till I get stuck because i didn't air down and just stick it 4wd to keep going
@Sammy-bl9jf10 жыл бұрын
wow!! always wanted to see how it actually works, appreciate it bro thanks for that..
@kookiekookie93374 жыл бұрын
2@
@brijahn9 жыл бұрын
Great video. Thanks for explaining in a way that's easy to understand.
@JayJay-de8vq4 жыл бұрын
The anchor peice that the spinning "Gov" locks on to also moves with centrifugal force so it will swing out of the way when the carrier is rotating to fast so that the "Gov" will not catch it to activate the locker. That way it will not lock at high speeds and damage it self or cause both tires to break loose on wet road surface at high speed.
@dwaynefehr43173 жыл бұрын
Not true you will instantly go sideways at high speed. I speak from experience. 1 tire had traction and the other one was on ice And the second the one on ice broke loose the other one kicked in and there I was sideways on the highway
@deere33213 жыл бұрын
@@dwaynefehr4317 It won't lock over 20mph
@minnesota70103 жыл бұрын
Jay Jay your a smart guy...Thank you.... So no damage will be done at high speeds....
@minnesota70103 жыл бұрын
@@dwaynefehr4317 like Jay Jay said there will be no damage to the internal parts at high speeds......
@JayJay-de8vq3 жыл бұрын
@@dwaynefehr4317 You have to understand that if you are on slick roads it will lock at low speeds and stay locked depending how you drive up to high speeds. Unless there is a malfunction it should not transition from unlocked to Lock at higher speeds
@kcst0rm4 жыл бұрын
Thanks for the info man! I'm rebuilding my 10 bolt 8 1/2 rear now. I'm NOT a mechanic, I'm just NOT paying over 3k for a shop to fix my cracked pinion! Wish me luck, and thank you for the video.
@brandondonovan84023 жыл бұрын
how did it go?
@kcst0rm3 жыл бұрын
@@brandondonovan8402 She'll run like a "Rapped Ape" now! "Luna" is a 2002 Z71 Suburban with '411' gears. I also put a Corvette servo in the transmission. So she now barks tires thru 3rd. Thanks for asking brother! I took a ton of pics while doing the rear.
@brandondonovan84023 жыл бұрын
@@kcst0rm thru 3rd! Wow. Nice brother, good to hear! Bet you love it
@ctascmercdoc10 жыл бұрын
You are super close to explaining the G80 Locking diff. or Gov Loc. Also this is considered a LSD, it has clutches that have a low preload on them, at least my 70s GM truck was. When the govenor opens and locks on to the tab it caused a ramp to move to increase psi on the clutch packs to lock the diff under power it does not lock to the spider gears. Also it will only lock under 25mph, above that speed +/- the govenor spins out so that it will not latch the tab. This is a good diff but does not like to have tires over 33inches on them.
@johncasor96986 жыл бұрын
35'' tires on my 2005 4x4 GMC & 250k on it never had a problem ....
Close. it uses an engagement governor to stop the cam plate from rotating in the differential case, if axle speeds vary by 100 RPM or more. This forces the side gears outward, applying pressure to the clutches. The lockout governor disables locking action at vehicle speeds over 50 km/hr (30 mph).
@stevenking29809 жыл бұрын
Great video ! I just changed mine out on my 97 Chevy z71. At 270,000 miles I thought I should. It's a very clever design, and eaton makes great stuff, even for big rigs, so it's gotta be tough.
@Tqtrpiypuu9 жыл бұрын
Nope not tuff, they hold up just fine under normal use but abuse it and the spiders grenade. Been there done that.
@stevenking29809 жыл бұрын
Yeah not good for on the blacktop burnouts. But mine has 270,000 miles all original off road...
@jimmystractors14278 жыл бұрын
They're perfectly "tough" for what they were designed for, but not necessarily the idiots who want to abuse their stock vehicles.
@hitekbigmek8 жыл бұрын
+Steven King JUNK! Aka GOV BOMBS I've been doing rears for over 40 years ,This is a total pile of crap!I had a junk bin literally full of these
@jimmystractors14278 жыл бұрын
Must be why GM still uses them.....because they obviously don'tcwork AT ALL! Don't abuse your shit and you won't have a problem.
@AStanton19667 жыл бұрын
The beauty of this rear-end is the locking axle. If you get one wheel stuck in mid air, the whole axle will lock and bring you down. Try that with a limited-slip differential! The wheel in the air will spin all day and you won't go anywhere!
@6.4hemidriver445 жыл бұрын
My Ram '15 2500 has a AAM 9.25" front and AAM 11.5" rear diff with the auto locking diff, same as in the Chevy/GMC's. It works ok at best. Many times only one wheel gets power. In my opinion one of these auto locking diff would work good in the front diff while having a Detroit Locker type in the rear. I plow snow, traction is essential. Having the factory Chrysler lifetime powertrain warranty is keeping me from swapping them out.
@denverkenyon3203 Жыл бұрын
That is awesome! Thank you for this wonderful explanation!
@EnvoyExpress4 жыл бұрын
THANK YOU! that was a great help. Thank God
@bravo35419 жыл бұрын
Very nice job Van. Using an actual differential. Thanks
@DM-qp7do2 жыл бұрын
My 05 GMC Sierra 1500 4wd SLT crew cab has 4:10 posi stock, just bought a wrecked 07 2wd Chev and I haven't checked yet but expecting tall gears with a one legger. That will be the first thing to go, then the 4L60E next.
@altonlewis988 жыл бұрын
it's a good locker mine works great when it snowed I just put cider blocks in the back I didn't really need my four wheel drive I got around fine
@JeepJeep2344 жыл бұрын
If you drove great that means the locker didn't activate. Locker in snow = disaster.
@cyruswilson24306 жыл бұрын
Admirable presentation,
@thatkyleguy12896 жыл бұрын
Cool video, very informative, thank you!!
@mkernen2 жыл бұрын
Definitely makes a bit of a thunk when it locks, but it works amazingly well!
@bubblez91042 жыл бұрын
Im having a problem where it thumps from 1st to 2nd gear. Sound comes from the back. But sometimes does it in other gears. I have a feeling it thumps when the gear doesn’t change fast enough and then driveshaft is left loose then hooks back up not sure if im explaining correctly
@jasesitl48373 жыл бұрын
i have a Chevy 2500 2009 the differential locks up when turning I hear a pop and locks up the rear tires and then I reverse it a few feet and it unlocks any advice on what to do ? might be the Gov lock ?
@bryansantos763916 күн бұрын
Did you ever figure it out? mine has the same issue thinking it might have something to do with that gov lock
@whikidfmj4 жыл бұрын
Ok correction, there are clutches on the inside of ring gear housing. Lsd additive shouldnt effect them typically except some times may cause them to delay locking or not lock however open diff operation and life is unaffected.
@skorpion725868 ай бұрын
Hey, I can't figure how to position the lock spring. I can't tell where the elbow and the straight of the spring make contact. Any help would be much appreciated
@engineercar9 жыл бұрын
Very interesting , thank you for sharing.
@harvestblades2 жыл бұрын
Looking at the build sheet on my 05 yukon lst I just bought. Was going through the owners manual & it mentioned a locking rear diff avail and then I sae the build sheet say G80- locking rear diff. I was hoping it was a electronic locking diff vs a clutch pack limited slio diff.
@evangelon29 жыл бұрын
Cool, thanks for the vid. I learned something.
@jackbennett83713 жыл бұрын
Any way to convert that same diff to have a switch or something and make it a “selectable locker” 🤔?
@Sc0teeBe31810 ай бұрын
I have a G80 but sometimes it spins both wheels but mostly it spins only one. This is on dry pavement with regular street treads mind you. Is this how it should function? Maybe i just got my tires spinning too fast. Sometimes if i take a turn fast trying to do a power slide i can feel it locking up. It feels like it wheel hops around sharp corners at speed.
@WickedCRFu10 жыл бұрын
Awesome information thank you
@backoffjoe83478 жыл бұрын
ahuh that little thing you were moving with your finger gets stuck, and one side of my truck will Skid Hop, like jerk skid while turning going forward slowly from an initial stop often in the snow, I back up a foot or two and it quit. BUT I never knew thats why my backing up fixes it. I had the fluids changed and it seems like it's better.
@chrismaze34416 жыл бұрын
Thevoice ofreason make sure it has the limited slip supplement added to it it lubes the clutches to keep them from chattering when you turn.
@steveh70856 жыл бұрын
Thevoice ofreason b
@Insomniac22345 жыл бұрын
These don't have clutches in them so it doesnt need the limited slip additive. However the chattering in this guys diff may actually mean it's a clutch pack style LSD. Which would mean it needs the additive. Check the RPO codes and if it has the code G80 then you have the style shown in the video.
@yourbigattitube4 жыл бұрын
These DO have clutches behind the side gears, so it does require posi-lube.
@paultavres98304 жыл бұрын
The side gears dives the axles Spider gears dive the side gears
@Mike_The_Hog_A_Nator Жыл бұрын
I just found out that i have this locker in my 02' Blazer ZR2. With the wheels jacked up & put in gear, the passenger side spins faster & locks up, disengages, then locks up & so on. I have a loud bearing sound & i changed my drivers side rear outer bearing that didn't fix the noise, which you can hear around 25mph, then it gets louder the faster you go. I have zero play with the drivers side rear, but the pass side & a little clunky in & out play. The noise definitely is wheel or diff noise but everything looked good inside with that locker. I'm hoping it's the passenger side rear outer bearing. This has me confused.
@estegueydijo....2 жыл бұрын
i feel that my avalanche rear wheels are locked together bc when I make a sharp turn rear axle brakes. it not released the locking mechanism.
@ffbarnette2 жыл бұрын
I assume once the pressure is let off the limited slip will unlock and return to a standard differential therefore nothing special would have to be done for it to return to normal?
@bonekuhobonekuho26583 жыл бұрын
Thanks for describing how the locking mechanism is engaged. Makes sense. However, I'm trying to figure out how the locking mechanism disengages once traction is recovered on both tires.
@chucksgarage71652 жыл бұрын
I believe it stays locked until you let off the gas and coast.
@orlandosparks831 Жыл бұрын
when you ease off the gas pedal there is no longer torque being given which causes the weight to close and release the arm.. basically if you are in the snow at a dead stop and you hit the gas a little harder then normal, the counter weight do to the torque will open up and latch on to the locking arm and now both axles are locked together. Now people think you must go 120 rpm but thats not entirely true as the jerk motion of the shaft do to torque will cause weights to throw out. now ounce out the arm is now locking the axels together, so now your truck is moving in the snow with both wheels locked going same rotational speed off the line from dead stop, so now you are driving towards an intersection and you let off the pedal ( no more torque ) and the weights will now slow down and close and disengage the arm that it locked into and no more locking. Reason why this unit blows up is people don't drive it correctly ( me included ) as if you are going around a corner and gas it and there is a puddle or wet and haflway threw the turn your one tire spins and then you gas it up harder causing more torque the weights will throw out trying to lock the axles. Now remember you are going threw a turn so one axel is spinning more then other do to the turn ( if that makes sense ) so now your G80 is trying to lock up as one axel spins crazy fast ( the tire doing burnout do to water ) and other is turning do to dry pavement and axel locks up the spyder gears very violently. So this is where the bomb hits and you kill the spyder gear usually in 3 pieces. i blew mine after 283,000 miles. i have a 2007 ZL1 Avalanche that is cammed for towing and dynowed at 320 ponys at the wheels which are 20x12 rims and 33 inch tires. I DO NOT DO BURNOUTS OR SCREW AROUND bUT UNFORTUNETLY I DID find myself turning on to an multy lane road ( speed limit 40 ) that had cars doing 50mph and i was dead stop. so i got on it a little and there was a puddle and my inside tire spun and i got more on the gas and BANNGG!! it engaged hard. after that my rear started acting a little funny going around tight corners at low speed ( parking truck and stuff ) and i was getting wheel chirp. Finally after a week leaving taco bell drive threw its a long sweep turn just barely touching gas and rear started banging hard and now i felt it was stuck in lock. got it home and pulled cover and there are my spyder gears in 3 pieces on bottom of housing... SORRY FOR LONG POST...
@terrancekenallen22419 жыл бұрын
Very interesting. This is the mechanical approach to limited slip. Most vehicles today use electronic traction control. When one wheel starts to spin the computer applies the brake to that wheel distributing power to the other. Electronic prevents you from intentionally breaking traction unless you manually disable it though.
@subradiant_music9 жыл бұрын
Terrance Kenallen its annoying in bmws lol cause your rear end just slides over and sometimes the computer can't apply enough braking force to one side so its gonna spin anyway if you're on ice on either sides. Generally its good for snow and light snow but any high or heavy heavy thick snow forget about it lol
@terrancekenallen22419 жыл бұрын
Very good. It's always good to have 4 wheel drive in those conditions as well.
@subradiant_music9 жыл бұрын
Terrance Kenallen True lol the Xi series and X drive series are insane in the snow but for a rwd car, they drive good and better than most rwd cars in the snow I must admit.
@Tqtrpiypuu9 жыл бұрын
It's not a limited slip at all, it's a locking differential a different category all together. Limited slip uses some form of clutches to tie the two wheels together thus giving you a limited amount of slip between the two wheels. A locking differential physically locks the two wheels together, zero slip. Lockers do however have some way of unlocking to allow the wheels to spin independently. The GM locking differential has managed to combine an open differential with a Detroit style locker. The flyweight mechanism he shows in the video is just a sensing system telling the it when to lock up, the actual locking mechanism is behind the side gears hidden from veiw. I have owned several trucks with these locked and in my experience they work brilliantly, I think most of the complaint come from people who don't understand the conditions in witch they are supposed to lock up.
@jamesbadham38729 жыл бұрын
+Austen tatious . you know x drive bmw's are all 4wd right??
@JeepJeep2344 жыл бұрын
Wouldn't that lead to differential failure because it's relying on wheel spin to lock the differential? Can only imagine the amount of shock load it's getting every time it activates.
@docholiday97864 жыл бұрын
Was thinking the same thing
@voidisyinyangvoidisyinyang8854 жыл бұрын
see above comments - there's a clutch pack in the governor - and it fails - especially on the 10/12 bolt diffs
@peekydee8 жыл бұрын
great video
@tonilupinacci61104 жыл бұрын
Thanks man answered my question
@ChevySS19689 жыл бұрын
Excellent video, thanks. That setup looks like it would blow up immediately EVERY TIME, due to shock effect from that little locking lever instantly engaging. What is preventing this thing from exploding???
@FlyingHangman9 жыл бұрын
ChevySS1968 the little locking lever doesn't actually transfer that much force. that's more or less still what happens in the casing/spider gears. all it really does is stop the "horizontal" spider gears from rotating, therefore making them essentially dumb pieces of metal, where the force then goes through them and to the axel gears..... hard to explain without a diagram, sorry.
@mvpolo2k36 жыл бұрын
go watch this video from Eaton, it explains it much better kzfaq.info/get/bejne/qrp3jbJ7tremlXk.html
@SunnyDaysRFun5 жыл бұрын
Wondering what the problem is with my 2004 Chevy 4x4. When I engage the 4 wheel drive, the front really binds up when turning, this situation has gotten worse and worse over the years, it's now really bad, it almost stops my truck or requires more then usual engine power to engage to make a turn, and it almost feels like something is going to break. It has 230k miles, used synthetic oil in both the differential and transfer case. I've owned the truck since new, changed the oil twice. Oil levels are up. Anybody care to share reasons what my problem could be? I've had a mechanic check it and he said something is wrong with my differential, don't now if he is correct. It does work in 4wheel, it also makes a small grinding noise when going straight, and it seems to require more than normal horse power to drive it in 4wd, it use to not be that way. Jan. 7, 2018.
@michaelamos27895 жыл бұрын
You shouldn't be driving in 4WD on dry pavement. Your truck does not have a center differential that allows this, so any binding or scrubbing that occurs when turning in 4WD on dry pavement is actually normal. Now, it's certainly not good for the drivetrain when it does this, which is why you shouldn't be in 4WD on dry pavement. If it's binding up or scrubbing while traveling in a straight line, this is most likely caused by mismatched tire sizes or tires that are unevenly worn (for example, having very worn tires on the front axle and brand new ones on the rear, or vice versa.) This is because the tires each have a different diameter (either due to mismatched sizes or differing levels of tread wear) and roll at different speeds. Again, with no center differential your truck does not allow for different wheel speeds between the front and rear axles. Hope this helps!
@BRField3 жыл бұрын
Is it lifted? Has it been in an accident? Did you check the u joints everywhere? I suspect the u joints.
@SunnyDaysRFun3 жыл бұрын
@@BRField I found out what the problem was, my differential had developed a hole, which was common thing, and eventually my differential became nonfunctional due to no oil.
@guest20076 жыл бұрын
8 months ago from 24 feb 2019 2:43 pm est: thanks 24 feb 2019 2:43 pm est: i wonder whether rear-drive-shaft is being pressed against left-side-gear which face to right-side.
@richardromero17972 жыл бұрын
Got my truck stuck in the snow. Engaged the 4 wheel drive. all energy went to the tire with the least traction. Locking differential never engaged. : (
@boebradley8672 жыл бұрын
I did a bone head thing and broke the governor. I took it out completely and left the spacer or block in of course. It works great, no noise, goes fine in snow. I have a 2006 Chevy avalanche 4x4. But my wonder is what exactly do I have now? A open differential? Can anyone explain?
@user-bh6hw8cu7w4 ай бұрын
So what's actually stopping it from engaging when driving if it uses centrifugal force😢
@josephfaraci10 жыл бұрын
wow nice video ; just learned something today :) I knew of posses rears and limited slip diff's but did not know of this self locking one... I just picked up a 2002 Silverado 2500 HD and wounder if I have this rear on my vehicle..
@louf71789 жыл бұрын
Posi. It's short for positive.
@Snowcrest2898 жыл бұрын
+Lou Fazio Or "Positraction" GM's marketing name for the clutch type limited slip differential. Ford uses the marketing name "Traction-Lok" clutch typed LSD.(Note: that is not the same as a Detroit Locker). Both of those types are much better for high-performance driving on dry pavement. Ex: doing burnouts.
@brt-jn7kg2 жыл бұрын
Here's the question will this differential gear set fit in the early 90s obs
@JB917103 жыл бұрын
I converted a 2004 Chevrolet Express 3500 shuttle bus into a camper. I will be using in snow, beach sand and desert sand. I was in snow last week and the right wheels sunk of the road into a snow bank and the right tires just spun and they are all I had to get myself out. Those Stupid left ones just sat there and laughed at me. So, if I want good traction in those conditions, I would need a differential that would switch to the tires with the better traction but I know for a fact I don't want the axles to lock because if they are both spinning, the vehicle will just slide off the road as neither side has tires in control. I always want one side rolling while the other is digging in. So what type do I need? What is it called? Limited Slip or Posi traction or what? Thanks!
@KTMcaptain5 жыл бұрын
Like countless others have pointed out to you... you’re wrong. The flyweights catch the pawl mechanism under 25mph (above 25mph the counterweight on the pawl moves it out of the way). When that happens they cause a ramping plate to energize clutch packs on both spider gears. That block in the middle allows the ramping plate to energize both clutch packs. “During normal driving conditions, the MLocker (G80) functions as a light-bias limited slip differential. When a low-traction situation occurs that causes a wheel speed difference greater than 100 RPM, a flyweight mechanism opens to engage a latching bracket. The stopped flyweight triggers a self-energizing clutch system, forcing a cam plate to ramp against a side gear. Cam plate ramping will continue to increase until both axles turn at the same speed (full lock), which prevents further wheel slip. When the need for improved traction is gone - unlocking occurs automatically and the differential resumes normal operation.” www.eaton.com/us/en-us/catalog/differentials/mlocker.html
@notoriousscottyb18 ай бұрын
Where can I get the tools to remove that set up. I worked for GM dealers in the past, and we had them, of course. I would like to get them for my current vehicle an 04 Avalanche. ANY help from anyone finding them would be greatly appreciated.
@airplane247 Жыл бұрын
How can you tell if your truck has one I have a 2003 2500hd chevy
@jayr.1523 Жыл бұрын
Are posi differentials recommended?
@marksparrow25139 жыл бұрын
Take your Vin # to your local GM or Chevy dealership and they can print you the original build sheet from the factory. That will tell you if it has a locking rear diff
@Clint_the_Audio-Photo_Guy4 жыл бұрын
Can I install one into a 2019 Silverado that came without one though? Or is the housing different too? Trying to buy a truck, and it doesn't have a posi rear end, so I'm trying to figure out if I need to look elsewhere, or if I can retrofit it.
@vsvenson4 жыл бұрын
I don't know the answer - maybe someone else does?
@sgrajaram2 жыл бұрын
Does this limited-slip differential make lots of noise, or cause a loss in performance under normal running on the road or turning. I want to retrofit it on my car, but don't want to suffer on road performance.
@landonparker9905 Жыл бұрын
Can i get the locker unlocked. Its locked in bind
@XxAlex1995AlesanaXx10 жыл бұрын
locked diff is for mainly for drifting ;)
@moedalgarny5 жыл бұрын
And offroading too specialy extrem 4x4
@timvalles91544 жыл бұрын
I have a 95 GMC SIERRA with limited slip unit. Is this the same unit as mine. Or does mine have springs and clutches? Also can mine be rebuilt? I can't seem to find any information on rebuilding, or buying a new or rebuild OEM unit. Mine has over 300 thousand miles on it. It has 29" tires on with 3.42 gears. I want to add some BF Goodrich All Terrain tires. The smallest one's the sell for a 15" rim is a 31" tire. I did the math and have to replace my 3.42 gears with 3.73 gears to keep my torque ratio the same with the new tires. So while I'm replacing the ring and pinion gears I might as well rebuild the limited slip unit. I can't find a new or a remanufactured OEM unit. I was interested in the new maintenance free worm gear drive limited slip units. But I read online that with those units if on tire is off of the ground the other tire won't spin so maybe okay for cars, but not for trucks. Plus other after market and maybe some OEM units have springs and clutches the need to be rebuilt I don't know how often. I know my OEM unit has lasted at least 320,000 miles without needing a rebuild yet. I like that. But what really sold me on staying with OEM, is a video I seen here on you tube, that show how well an OEM works. It was a 2 wheel drive truck that looked like mine. It showed the truck in a situation where on rear tire was off of the ground spinning in the air, then you hear a click in the rear end the the other tire, the one on the ground starts to move, and so does the truck, and it gets out of that situation and drives off. After seeing that video. I'm sold on staying with OEM limited slip unit. Again. My truck is a 95 GMC SIERRA EXTENDED CAB 2 wheel drive truck with a 3.42 10 bolt limited slip differential. So I need to know while I'm changing my gear ratios, is there any way to rebuild my stock unit, does it have springs, weights, or clutches that need to eventually be replaced? If so. Where can I find the parts and information to do the job. Or where can I buy a remanufactured OEM unit. Any advice would be gratefully appreciated. Thanks.
@hey_youtubeim_back2159 Жыл бұрын
You meant to say Spider gears sometimes called crown gears. Your welcome
@jonienglish32314 жыл бұрын
Good Video Question ? Do you have to ADD - ADDITIVE in this type of Locking Diff
@blkmaxx4 жыл бұрын
Joni English I wonder the same thing...
@jonienglish32314 жыл бұрын
@@blkmaxx i do not think you need it maybe on the OLDER 1979 and 1970 posi Diffs
@matt9c18 жыл бұрын
Great video !
@TheDpkustums8 жыл бұрын
just reassembled my g80 locker and the governor lock slides side to side do I drive them in farther so they don't slide so much
@mattmcgee973 жыл бұрын
Can I take the lock out of it mine’s not working
@abdcontractingltd10 жыл бұрын
I have a question, i bought a 09 silverado with 4.56 yukon gears installed for larger tires. They are both open differentials. Could i get a locker installed with these gears ? or would i have to order a new set of gears altogethe
@bigstuff525 жыл бұрын
excellent....
@InCountry69707 жыл бұрын
Damn good explanation, thanks
@jaydenmcdonald664 жыл бұрын
Are you able to install taller gears on a g80 locker? I have 3.08 gears right now and am about to install 35's. Wanting to go to either 4.10 or 4.56
@brianneston8575 Жыл бұрын
Do you have a video on the ZR2 lock and run and front end rear axles
@vsvenson Жыл бұрын
Sorry, I don't
@dachandler19533 жыл бұрын
that's not how it works when cylinder spins the arms fly out ward engage the rod that turns and activates the clutch pads on the outside the bottom piece disengages after 20mph
@masterdanprice29044 жыл бұрын
Awesome
@franklinlance17534 жыл бұрын
I'm I got a question does any body know why I can get the right gear clamp with both bolts tight to hold the gear in but left side I can get the bottom one to tight up and when I tighten the top one it tightens up but the bolt is a half inch stuck out is there a trick to get all the bolts to tighten all the way up thanks
@BigBlockOverland4 ай бұрын
The ol Gren-80.
@John-Deere10 жыл бұрын
That's true, above 20 MPH it can't lock because the locking dog springs away just as the locking device springs in the other dog will spring away.
@julianoliva28504 жыл бұрын
I recently bought a 2011 chevy colorado 2.9L and put a posi lock unit on the differential I only know is a 10 bolt but what are the other specs can anybody give me a hand with that or where can I see?
@camron26744 жыл бұрын
I wonder if my 2002 yukon has this type of diff?
@whikidfmj4 жыл бұрын
Guess I'll run mine with the 4oz of modifier I put in for a few weeks and keep s temp gun with me and monitor it after drives. And keep hitting coldest s to see if it starts to chatter
@Accumulator12 жыл бұрын
A friction additive is not supposed to be added with this type. Only with the LS clutch plates design. Only 75w90 GL5 synthetic oil.
@robertpaul36752 жыл бұрын
Should I use limited slip additive enriched 75w90 gear oil or no ls additive?
@vsvenson2 жыл бұрын
The LSD additives are primarily for clutch-type limited slips, which this isn't.
@AboTurkiPro6 жыл бұрын
That’s amazing but sometimes in my Holden Vy V6 if I floor it the car slides to the left not in straight line why ? The right spin faster than the left. I’m sorry I’m still new and young please help me
@vsvenson6 жыл бұрын
With a limited slip, both rear wheels will break free and lose traction. Depending on suspension alignment and slight steering input, it will slide one way or the other.
@oldpartsnrust4 жыл бұрын
That is the "right hand rule" of torque. If you take your right hand and spin the top away from you, your thumb points to the left, which is the direction of the "push" of the torque causing the rear of the car to slide right which makes the car turn to the left. www.google.com/search?q=torque+right+hand+rule&rlz=1C1ASUM_enUS843US843&oq=torque+right+hand+rule&aqs=chrome..69i57j0l7.4423j0j8&sourceid=chrome&ie=UTF-8
@oldpartsnrust4 жыл бұрын
Although, the right hand rule can be overcome by a greater force (gravity) if the road crown or tilt is greater.
@benkanobe75003 жыл бұрын
Outstanding demo! I have one in each of my 3/4 GM Trucks and they both work great. I have a dumb question: GM calls it an "LSD" Locker. From your demo, I see no clutches or friction plates that a typical LSD has. Does the G80 have clutches and plates, and such, or just the locking mechanisms you demonstrated? Thank You!
@vsvenson3 жыл бұрын
I haven't opened a G80, so I don't know.
@Imustfly2 жыл бұрын
Yes....the G80 has two clutch packs,...one on the backside of each of the two side gears. Engagement of which is governed by a ramped side gear/cam gear combo on ONE of the side gears....the other side gear has a clutch pack, but no ramping mechanism. The power from the ramped side gear clutch pack is transferred to the other clutch pack, via the central transfer block.
@styx23x10 жыл бұрын
thats really kool thx for that video
@harrybabcock6773 жыл бұрын
Where to find them parked I have to find one of them
@panniepheng827510 жыл бұрын
So is it good to have a tight kaaz 2 way differential?
@specialized29er864 жыл бұрын
I didn't see the diff cover so wondering can you manually lock the diff while driving at speeds less than 40k's.
@vsvenson4 жыл бұрын
I don't know of a way to manually lock it - the diff cover is smooth on the inside.
@raymondohernandez87958 жыл бұрын
what the diffrents between the eaton lock?
@bryanpiczon807010 жыл бұрын
Is this TRUE?
@1965chevell10 жыл бұрын
Actually your explanation is completely 100 percent incorrect. The governor doesn't spin to engage it spins to disengage the limited slip operation after 25 mph. The gov lock part when spinning actually UNLOCKS the differential at approx. 25 miles per hour. Anything under 25 and the differential is effectively locked but with the limited slip operation fully functional for going around turns etc. After 25 it unlocks and you then have an open differential with only one wheel being powered for better mileage and safer operation in the rain or at higher speeds. The G80 simi-float 9.5" is a very good differential no matter what others say about it. It's not made for doing burn outs in the mud while spinning around in circles but it can indeed handle big tires. It's made for simple straight line traction below 25 miles per hour and efficient operation after 25.
@clarktferrill8 жыл бұрын
why does my Safari differential slip and or clunk after a stop and sometimes when automatic shifts gears...180k miles...some have said worn bearings? ....previous owner did pull a trailer quite a bit...no grinding noises....all seems quite ...but very annoying clunk
@rodpalm63988 жыл бұрын
That clunking you hear is from free play in the ring and pinion gear due to high mileage and heavy towing, probably without anyone ever changing the gear oil.
@clarktferrill8 жыл бұрын
+Rod Palm thanks for the comeback..I had been told it was either worn bearings or worn ring gear and pinion..bearing replacement $ 500...gear and total rebuild $1300...😞
@BenDover-kb7po7 жыл бұрын
Dudeareno Rodent that suck man their charging me the same. thing is the kit cost more than the whole car lol.😓😶
@josephmorris90986 жыл бұрын
1965chevell thanks for a very well explanation this guy sounds intelligent but he knows nothing
@MoneyMarcMes9 жыл бұрын
Do all Z71's come with locking differentials??? How do you know if your truck has a locking diff?
@burtkjac9 жыл бұрын
MoneyMarcMes G80 code on glovebox sticker denotes limited slip.
@oakridgeboy20235 жыл бұрын
Ingenious
@ianluigilastra18507 жыл бұрын
Is this same for trailblazer ltz 2017?
@dennisrowe38605 ай бұрын
Why didn’t they put this in the hummer instead of the locker it shuts off at 20 mph? With the locker in this video work in my HUMMER????
@grumpyt31699 ай бұрын
I've had 3 of these explode on me and tear apart the whole carrier housing. The first one even punched a hole in the housing it was that bad. Note how thin the rods are that the weights ride on. Worst design ever and GM has been using them for a long time. Not meant for serious use. Bring back the old clutch plate style posi traction or just replace it with a Yokon or other serious posi traction or locker depending on what you want to do. Also, note that a special lubricant is needed can't just use the normal rear grease. And yes, the grease should be changed at regular intervals. I love my Bowties but this design sucks! Nothing against your tutorial on how this works Van. I think it was spot on and quite helpful for those with this system. Just voicing my dissatisfaction with this design and maintenance needed for it. Still, it may fail you in the most inopportune moment even with normal driving.
@izom Жыл бұрын
big confusion- 1st my g80 locker dont work- opened- all parts workin movin - no damage ! so wtf? 2nd confusion have a lim. slip oil tag on diff??
@shortflame503810 жыл бұрын
Is this the same on a 03 gm yukon xl?
@2000transam1007 жыл бұрын
Does anyone know the cheapest way to repair this? I have a duramax with only one wheel spinning. Need to fix this before winter. Thanks
@veronicawicker52736 жыл бұрын
Did you ever get this taken care of? My husband has the same issue right now and he wants to know the best way to fix it.
@michaelreddell68696 жыл бұрын
Not all GM trucks have this. Look at the codes in your glove box and look for G80. If it's there then you have it
@JUAN571945 жыл бұрын
I usted to ribuild those G/lock but I prefer diteoit true trac
@boobayloo6 жыл бұрын
I wonder if heavy duty trucks also have it... like 18 Wheeler and all, doing work off road.
@brandedmcgowan94145 жыл бұрын
2500 and 3500 HD has em
@justinhighdesertkeeper92513 жыл бұрын
Be carefull ! Do not let one wheel spin very fast before lock wakes up! The result will be bad. Also make sure that your Diff lube is clean and warm. Good Luck.
@minnesota70103 жыл бұрын
Don't let one wheel spin by itself 100 RPM at low speeds if so you could be fucked..
@minnesota70103 жыл бұрын
Your right Justin
@nickritter199210 жыл бұрын
are these loud when they lock ?
@vsvenson10 жыл бұрын
I don't know the answer to that... but I wouldn't think so. I'd think it just makes a click as it locks, then nothing would move, so it should make a noise.
@conatuslife10 жыл бұрын
the diff doesn't really make any noise though you can chirp the tires depending on conditions. my example of having that happen was one wheel on snow and the other on pavement while pulling out from curb side parking.
@wolfgangiceclaw10 жыл бұрын
I have a 03 Sierra with this diff and I can tell you I don't hear a thing when it locks, but I can tell you I defiantly know when its working. It will only lock while on the power and when it dose, say while gassing it in the middle of a right hand turn around a corner, you hear the inside wheel chirping and feel and back hop a bit. If your too aggressive the rear will slide and you will start going sideways.
@Okanaganguy20219 жыл бұрын
yes the make a clunking sound one wheel spins the other locks... terrible rear end in the snow ...I would prefer a limited slip over this locking rear end any day ...to me its just a cheap budget rear end .
@wolfgangiceclaw9 жыл бұрын
MrIslandguy46 When you learn to take it easy turning it's actually a good rear end. Also its easier on tires than a limited slip because when you drive it easy its an open diff. Now as for the snow I have no experience as I live in Louisiana, but in muddy fields it works very well. I've pulled my friends 2wd Ford with an open diff out with my Sierra 2wd with the locker. I will say this though, I think the locker would have been better if it were an electric one like in Toyotas and activated with a switch rather than automatic.
@omaralnajjar30819 жыл бұрын
thank you for the great video but I have a question... i didn't change the differential oil for a long time almost 7 years (230000 KM) is it going to damage the diff ?? or it will be OK ? cause a lot of mechanics told me not to change it . cuase it will damage it .... is it true ? and again thank you for the great video.
@omaralnajjar30818 жыл бұрын
+TaterTits You got that right my friend....
@JeepJeep2344 жыл бұрын
You should probably change the fluid in the differential, just make sure to remove the cover and redo the seal. Your going to want to check for metal shavings and if they're present, remove them. And check the bearings for damage. Basically just spin the differential with your hand and if you hear anything else but the gear teeth then consider getting the bearings and seals replaced.