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  1. YJ Wrangler Technical Forum
    Ok guys (or gals, whatev you identify as…lol). I picked up my third YJ (1991, 4.0, 5 spd, mostly stock drivetrain) a couple months ago, and most of the heavy lifting had already been done…lift, tires, 4.10 rear diff swap, SYE, Trac-Bar lift welded on, etc….she also came with a ring and pinion...
  2. XJ Cherokee Technical Forum
    Hi folks, appreciate assistance as always. I'm rebuilding my 8.25 diff, had a whir that I diagnosed to a bad outer pinion bearing and race - both were pretty pitted. I've replaced all bearings, have new seal, new pinion nut/washer. I also installed a Spartan locker and a crush sleeve...
  3. YJ Wrangler Technical Forum
    I am confused. I took apart my front end and the ring and pinion are pitted badly and needs to be replaced. Going off the tooth count I have a 3.54 gear ratio. 46 teeth on ring and 13 on pinion. Is this the same as 3.55 gears? I am looking at replacement ring and pinion and the teeth count...
  4. JK Wrangler Technical Forum
    I have a 2015 JKUR with the Mopar Stage 3 lift kit and have been trying to improve my steering. After installing new ball joints, tie rod and drag link I got an alignment and found my caster was only 3.2 degrees. My lift kit doesn't have adjustable control arms, so I was considering replacing my...
  5. YJ Wrangler Technical Forum
    Hello Ladies & Gents, I've had myself a problem recently. (I'm learning, so please don't berate me for my mistake. I know I messed up.) When replacing a yoke & pinion seal on my rear axle, I screwed up/ordered the wrong seal, resulting in the oil leaking out of my diff while driving. What...
  6. WK Grand Cherokee & XK Commander Forum
    Short version: If your rear pinion seal is leaking, change the diff fluid when you replace the seal Looking for opinions on if I actually need to change the rear end and if so, what do people suggest? Long version: The ring and pinion has always been loud since I got the Jeep with around 87k...
  7. Engines & Drivetrain
    I'm tearing into my old Jeep - frame-off restoration, more or less. Into the rear differential, things looked pretty good so I re-used the original pinion gear and bearings, shims, ring gear and bearings, but new cups. I didn't measure pinion gear depth since I didn't change anything. The...
  8. YJ Wrangler Technical Forum
    Hello, 95 YJ 4 cyl, I'm going to 4.88 gears in my D30 and D35C. I'm all ready to go but this is my first r&p setup so I have two quick questions. The first: I was planning on doing the front first. My thought is that I can drive around with just the front done and not use 4wd for 100 miles...
  9. ZJ Grand Cherokee Forum
    I recorded the sound my 1998 Jeep GC 4.0 is making. The sound is noticeably louder than 5 months ago. Jeep has around 142k miles on it. From my research it sounds like how people describe a bad pinion bearing. I took the Jeep to the shop and all they said was "need to replace rear axle for...
  10. Colorado Jeep Forum
    I thought you might benefit from my story. Last week I was in Silverton, CO (and Ouray, Telluride, etc.) I was running some of the trails many of us love like Imogene Pass, Ophir, and the Alpine Loop. However, I had a breakage on the trail. Rolling down the last mile of Ophir Pass to 550...
  11. ZJ Grand Cherokee Forum
    I have been searching and searching for the proper service procedure on how to re-do the Pinion seal in the front differential on this vehicle. It is a 97 Jeep Grand Cherokee Laredo with all stock drive shafts and axles. I am willing to pay the $150 I have been quoted if you guys really think I...
  12. TJ Wrangler Technical Forum
    Hey All, I'm in the process of regearing a dana 30. When you're figuring out your carrier shims with the setup bearings and pinion installed. Do you need to fully torque(~255ft lb) the pinion to get a correct reading or just tight enough where there's no play?
  13. Engines & Drivetrain
    My old pinion had +1 marked on the head. The standard depth is supposed to be 2.095 so I'm assuming my old pinion was a 2.096. However there were no shims on the pinion or behind the race which confuses me. My new pinion has 2.100 marked on the head. So I believe I have to add .005 inches worth...
  14. Vendor Display
    Diff Wizard Locate Parts And Equipment For All Your Differential And Axle Needs Easily And Fast! Free Shipping On Most Items! Try It For Yourself Today!
  15. WJ Grand Cherokee Forum
    Hey so I could use some help and thoughts. My wj makes a fairly loud whining noise when I'm accelerating. If I'm accelerating fast like getting onto the highway it gets pretty loud and when I like bounce (I'm not sure thats the right word) it changes into a growl as the angle changes. I know my...
  16. YJ Wrangler Technical Forum
    so i was driving home yesterday and when i was literally less than 200 feet from my house, i felt a few lurches and then next thing i know my transmission is engaged and my engine is revving like crazy. Guessing what had just happened, i quickly cursed the previous owner for the poor air locker...
  17. TJ Wrangler Technical Forum
    I Recently installed a 2" BDS lift, rebuilt transmission & transfer case, new clutch, and now a SYE and CV Drive Shaft from Tom Woods. I installed the new SYE and CV because I was gettng the terrible rear vibes in second gear after installing the lift. Now the new Tom Wood's Super Duty Tail...
  18. TJ Wrangler Technical Forum
    so my d35 is a P.O.S. im sure everyone already knows this. a couple of months ago i blew up the u joint closest to the pinion yoke. it sheared off one of the bolts that held it onto the yoke so i had to replace the yoke. i got a replacement one that used a u bolt instead. a month later as i was...
  19. Engines & Drivetrain
    The pinion is done for in my Dana 30. I don't have the time or money right now to rebuild it @ least for a week or so but I need my Jeep, as it is my daily driver. Which leads me to this question: Is there anyway I can pull the pinion gear from the rear to avoid it from locking up but still run...
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