3 minutes in and this man gave the best explanation I’ve seen yet. I know the pattern well but always like seeing how people can break it down.

I just got a 4320 and there was no diagram so I was damn near trying to drive a spaceship. You explained this perfectly. Thank you sir

Grew up driving a 4020 synchro range all summer long for my entire childhood. That pattern and how to run through the gears quickly are burned in my mind. If I ever have alzheimer's or something like that I bet I'd still be able to drive someone's bailing tractor 😂

Awesome explanation! Simplified and to the point. Wish I had this video five years ago when I bought my 4020!

Grew up with a 5010, 4020 and a 7520 with these. Great tractors!

Just picked up a 72 JD 4020. Thank you for taking the time to explain the gearbox.

I grew up on one of those... haven't run one in about 20 years. Nearly forgot how it worked... and it all made sense again!

This was and still is an excellent design of a transmission. Have operated alot of hours on 10- 20 series and even a 30 series with the synchro trans. Great video!!

Long time Case guy here. Just bought a 3010. This helps a little. Thanks!

This really helped me understand. The way you explained it made me realize that John Deere really made a superior design. Thanks!

I just got a 4320 and never operated a tractor before. Thank you for explaining this thoroughly!

Always drove farmall 806 and 856. Bought a 4010 because of the first new generation and I like the looks. This helped me tremendously trying to learn the shifting patterns. Thanks

This is the best explanation I have ever seen. The diagram you drew helps so much.

Good video. I have used my 3020 for years without really understanding it. Thanks

That transmission was great, fool proof and idiot proof as well. It was great for shifting from heavier work, to travelling across headlands ect. Like riding a bike, it just becomes instinctive after awhile.

Grew up with a 3020 with the syncro range transmission. Could shift this in my sleep now. You described this transmission perfectly. Nicely done.

Great video just what I needed. Just bought my Dad’s 3020 and wasn’t sure how this transmission worked. Your picture is perfect, plus explanation on how the synchro works. Thanks for teaching this.

I grew up on the 10’s and 20’s and never even give it a thought about the way you explained it. I’m glad you helped out the IH boys.

This was the best explanation I found yet. I get it now.

Un maestro el creador de esta trasmision. El ejemplo de la sencillez de esta marca. Alta y baja con una sola palanca

Thank you , I worked for a local farmer ALL through high school! John had a 4020 but he always drove it , once I took over turning ground ,while he went to dinner about an hour ! He told to leave everything where it was at ! I disk an pulled wagons with an old case no cab ! I loved farming, John was a good teacher patient an understanding! He didn't have alot of land I think around 500 acres! If he had more I would have been a farmhand! Wish I could afford to buy a small farm now !

I made an an audible "oooooh duh" after watching maybe 30 mins watching this. great job explaining stuff! you're a natural !

You did great explaining the shifter. I spent many hours on a 3020 doing everything in the field with it. My grandfather bought just when I started to help him. He mostly owned Massy Ferguson tractors because he got better deals and liked the dealer for service. My memories and even my grandfather admitted it was problem the best all purpose tractor on the farm. I know I spent the most hours on that tractor of anyone. It was the first cab tractor he ever bought. I liked that shifting system much better than the 2 lever Masseys. Thanks for doing the video, brought back some very fond memories during the 70's. Jeff

Grew up with John Deere my whole life never understood how the worked. We always had power shift. The ultimate as a kid on a grain cart In the 80s. Wet in the fall stand on the diff lock pull the throttle down and never take your hand off the shifter. Love the video

Ur very informative thanks had no idea how it worked

Great video you did way better job explaining then I could of

I asked my dad if he ever used the 4/7 gears much. He said that he used them for plowing if they where going back and forth, instead of around in a circle. You would plow in 4th, then when you got to the end, you could shift to 7th and go down to the other dead furrow. Shift back to 4th and get back to it. He also used it for pulling a grain drill. Don't need a lot of power, so he would be idled back in 7th, but if he needed to slow down, just go to 4th. There's also a reverse in the 6/8 position. But the dash doesn't allow the shifter to go that far down. If the trans linkage was disconnected, it could be put in it, but that would not be safe to do.

New to JD machines. Your drawing instantly made sense to me. Similar to an Eaton in a highway tractor. Thanks for that

I love these transmissions.

We had a 4010 at work. When I was hired, 5th was out of the question and 2 was iffy as both were the worse for wear. About 4 years in and extra money became available so I got to rebuild the transmission. And also rebuilt the brakes at the same time. As the tractor was used for disking, 5th was the best gear for it and why it had worn out. The brakes, well the first time I tried them after the rebuild I just about went over the steering wheel. Had to learn not to push down very hard on the pedals after having been use to having hardly any to start with. loved that tractor and the 420 also.

Phenomenal explanation!!! Well done.

As a twelve year old my grand father has a dairy farm. He has a 2630 with a 38 loader I think the emblems wore off but I really want to own one when I get older but one problem…. I didn’t understand how to shift it. This video didn’t really help until you took the paper and shifted it next to the paper that was so helpful thank you for helping me understand and honestly your the only one who helped me understand

Thank you. Just got my first synchro. Excellent lesson! Kudos! I'm in sync with my synchro! I think.

Just inherited a 3010. Decal pretty worn off. Great video and explanation to get me started. Thx

Excellent job explaining 👏

The Deere I used the most had 6 gears - a John Deere 60. I did use a 4010 back in about 2016 and it did not shift well at all. The Internationals don't work well after 50 years either. The old Farmalls and Deeres worked much better. Your explanation was great! Thanks!

Had a JD3010D, had the syncro, still had all 3 original reverse gears. Now, most would have that 4/7 reverse gear blocked, those gears were small and had a bad tendency of breaking a tooth, hence why many were blocked. It's also why the majority of the 20 and 30 series had them blocked out. Wasn't because they were to fast, because those small gears were weak. We plowed in 3rd, disc'd in 4th, raked hay in 5th and or 6th. Since you mentioned "Red", I also had a Farmall 706. In all technicalities, it's really a 16 speed. Torque amplifier would give you an extra hi/lo range or rather, a direct drive and low.

Can I just say thanks. That helped a lot

That makes perfect sense the way you described it

I never looked at it that way ! Interesting, thanks for posting. (1963 4010)

Good vid, I'd have to use it daily for a few weeks to bond that system to my brain.

Excellent description!

My dad had a 2510 John Deere, and that shifter mechanism always confused me. I never got to actually operate it, so I never got to actually “learn“ how to use it. The way you explain it, makes perfect sense. When the lever’s on left your shifting ranges. When the levers on the right, you’re shifting high/low in that range. My dad used that tractor a lot for packing corn silage, so he got really good at that forward/backward business…

Great video, definitely not scared of syncro now and won’t necessarily need to get a powershift

When u drew that on the paper that helped me so muck thxs.

Thank you , now it makes sense the deere people must have been on hallucinogens when designing them.

Those same transmissions were also used in some of the 30 series tractors. I have a 1973 4430 with the synchro.

Great explanation, thank you!

Used a 4010 for 20+ years had a blade oN it to push the silage/haylage piles and to tow doubles from the field to home. Also pulled a large slinger for many years from the pit. If you know how to shift ranges you can change the range on the move. Couldn't make it out of the driveway in 6th from the bottom of the hill where we loaded so had to start in 5th and the road was a hill up so you just learned how to catch 5th to 6th on the fly. Took a bit to get it so it seemed seemless. The key was to pull past the throttle stop with the override and really wind 5th out. Then you could half shift the range and I always counted to 3 and finished the shift then into 6th then 8th

This really helped me thanks

DAMN !!!! THANK YOU BROTHER !!!! NOW I UNDERSTAND !!!!!

Great video great information. N well spoke

Dude thank you so damn much. This actually helped me a lot to understand the trans. John Deere 2510 built better

Great explanation

Good explanation 👏

Great video

your drawing make soo much more sense

They should have came from the factory with that diagram you made. Great explanation

We had a 4010 and when cultivating you could shift into reverse quicker than the implement would raise....one of our 4020s was almost like thst...

They also were a great transmisson for loader work, quicker than a powershift.

4010. Here just seen your video was my grandpas. Late one I think 63 or 64. He got it in late 60s been on same place here for that time

Thank you!!!

I grew up driving driving 4010's and 4020" in the 60's. Very simple to use this transmission. I occasionally drove an IH with their two lever system and did not like it.

Me and this transmission have been in a good number of fights over the years.

Makes perfect sense now

In some of the 3020's after the shifter was worn out you could jam it into 7th reverse which was unintentional from the factory if they were synchro

Sure do love the quad range much simpler to operate. Don’t have much type behind the wheel of a synchro shift transmission.

I grew up running my pawpaws JD 2510. I'd literally just pick one, if it wasn't what I needed, I'd pick a different gear. I "found" reverse a lot LOL

I’ve got a 3010 like this. I can’t hit the brakes. For if I do I lose all my hydraulics. I can use the tractor all day as long as I don’t hit the brakes. Some times I’ve even got to release the pressure off the left brake to get it to move. This started when I had a oil leak under the floor pan. I used a ratchet strap to pull my brake peddles forward to gain a little space to remove the floor pan. Forgot to release the ratchet strap after finally removing the floor pan. Went out of town a couple days. When I got back the replacement line had arrived. So I put everything back together. Noticed my brake peddles wasn’t up where they normally went. Thought well they’ll pump up when I start the engine. Later I started the engine and the right brake seemed to be in the normal position. The left peddle was sagging lower than normal. Got on the tractor and both brakes were locked. So I loosened the brake lines and let the pressure that was trapped in the lines out . Next day tighten the brake lines up and to my surprise the left brake was still locked up. Got on the internet looking around found out I could release the the brake by a jam nut another. Loosen the jam nut left both nut and the bolt a tad loose and tried not to even use the brakes. A few days later I adjusted the bolt and jam nut to what I remember to be the original spot and locked the nut down. While using the tractor I hit the brakes pretty good because my garage is on the side of a mountain goat path. All at once I lost everything. No 3 point no power steering and no brakes. Fed up with it I shut the tractor off . About 20 minutes later started it back up and seemed to have air in the hydraulic system. Raised and Lowry the 3 point a couple 2 or 3 times and it seemed to be getting the air out . The 3 point was still a little chattery but I did get it out of the path so the goats and deer could get by. Has anyone ever experienced anything like this . Any help or suggestions would be greatly appreciated. By the time I get home Friday I should have the factory manual. Now that I think about it . I had a 300b backhoe book that probably could of help me understand the brake system better. If they’re about the same. I think they might be similar. I also had brake issues with it at one point Plus I’ve already changed the filter and fluid. Pulled the suction screen out and it was spotless not a speck of red brake pads

I love my 1974 4230 synchro

Watched three times great video. Our 806 farmall had torque amplifier. Would loved to field test with 4020 side by side.

I'm an international guy but the 5th reverse combo is great on a loader

We always called it the John Deere Jigsaw Puzzle

3rd range reverse is there, if the shift quadrant is worn out you can get it in there. Ask me how I found out.

I’m used to ford and Allis charmers lol this is a foreign language. Love the looks of these tractors though.

Grew up farming with it , 4010 4020 4320 i all used there is a hidden reverse below 4th 7th pretty fast. Used 4th 7th shifting for rotary hoe work.

So I have come across the problem of switching from reverse to forward or forward to reverse is very hard have to play with it it was working fine and I had stalled it and now the shifting problems.

There is actually 4 reverse gears, 3 is there but not labeled, 4 can be set by removing the lockouts and rotating the the second selector backwards.

That was the first tractor my dad learned me to drive was a 4020

I drove 3010 in Marion south south C .

Bet my IH friends that I could go through all 8 gears and never miss,,, did it so many times pulling big loads was good at it.

My 4020 DOES have a reverse with 4/7-R (3rd gear range).....where do I use this range? I have a loader on the front of the 4020... when picking up hay and moving some distance (and the field is pretty smooth), I use 7th to move to a new location to pick up a bale...and then use 4th gear to actually place the bale on the trailer... and yes I will use that 3rd position reverse to back up... it is very fast for a reverse, but I do use it when in that range. Now if I'm in a group of bales in the field and don't have to move very far to the "next" bale, then I use the 2/5 gears (2nd gear range).

So you can shift on the fly without breaking the clutch? I get some grinding between gears even when breaking the clutch on my 3010. I made and replaced the shifter rods and freshened up the shifter arms on the transmission. The shift selector and arm has some fair wear. I'd suppose the synchro assemblies are worn out.

a 4020 actually has a third reverse just like a 4010 but it is locked out because it is so fast. If you grind out the slot for it, it will go into reverse.

2:49 this is the greatest thing I’ve ever seen ever

Nice. My boss did not describe it very well.

Great explanation. I have experience operating the 4020 with the synchro. I have a couple of questions and hopefully you will respond. I realize this video is 2 years old now. One question I have is the durability of the synchro vs the powershift on the 3020 or any of the JD tractors that used these transmissions. Second question: Working on them how difficult are repairs on either one ? I suspect the powershift would be more complicated. Thanks for the great videos.

when you understand planetary gear packs, it explains the replicated pattern of the gears.

Can you do a video on adjusting the shifters. Mine has trouble going into reverse. Thanks.

You mention having two extra levers on an international... don't forget the torque amplifier! If you had one of those you had even more gears and levers.

Excuse my ignorance but do you have to clutch in when you shift? Also do you have to clutch to activate the PTO?

Any idea why I need to jiggle my shift before it will go into gear?

Glad i could help any ?s let me know.. they are awesome tractors

grüße aus bayern , germany, wir haben 2 der wenigen jd 3010 mit diesen getriebe die nach deutschland offizell geliefert wurden , fahre gern mit diesen 3010 .in deutschland wurde der 8. gang gesperrt um den tüv nur alle 2 jahre machen zu müssen. der tüv ( technische überprüfung ) hätte bei 32 km/h jährlich gemacht werden müssen. im 7. gang läuft er ca20km/h.bei straßenfahrten mit anhänger ist es störend gänge innerhalb der gruppe springen zu müssen.leider sind die gruppen nicht synchronisiert was das schalten erschwert.

You can really blow some minds when you tell them that a quadrange is a syncrorange with a high low unit

Where can I get parts for that kind of tractor, I need new gauges.

I never knew it was two shifters in one. Seems like it can reduce complexity.

No criticism, just a point, the 2010 was the only syncro in the 10 or 20 series that I'm aware of, that was 1,2,R-3,4,R-5,6,R-7,8. not sure the reason it was the odd one out.

Can u go in to reverse with out the clutch?

Can you shift while moving. Some I've drove you have to stop and put it in gear.