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Old 03-20-2012, 11:44 PM   #1
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what's an easy way to change the pinion seal

97 TJ Dana 35 pinion seal, do I need to change the bearings and crush washer and pinion nut or can I just get away with changing the seal, don't really have money to do bearings right now, but pinion seal leaking badly? Any help or suggestions would be helpful, thank u

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Old 03-22-2012, 12:45 AM   #2
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Had someone do a pinion seal change on both the front and rear about a month ago. All I needed was to grab the seals from the stealership as the autozone/ napa didn't carry the right size. came out to be around $45 for the seals. That was all we needed to get the job done. I also have a 97 with Dana 35 btw

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Old 03-22-2012, 12:57 AM   #3
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Sometimes a bad seal can be the first sign that your bearings are going. I replaced the seal on my front axle recently and thought I had a damaged driveshaft. Found out my bearings were going bad instead and that my straps on the transfer case end had stretched also.

Make sure your pinion nut hasn't backed off any, have had that happen a couple times over the years on my rear axle. Be careful doing this.
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Old 03-22-2012, 09:44 AM   #4
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Yeah I'm just worried about over tightening and under tightening the pinion nut, my buddy destoryed his brand new gears and locker by over tightening the pinion nut. The axel doesn't have any vibrations at low speeds, it don't have tabs so I really haven't been able to drive it, only around my neighborhood, thanks for the advise and commits
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Old 03-23-2012, 04:46 AM   #5
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If you have a few tools ,like a long handled 1/2" drive ratchet, you shouldn't have any trouble here. But you must put it all back together like it was.
One thing to check is the YOKE, once you pull that yoke out and wipe the seal surface off, inspect it for a groove worn by the seal. If there is a groove on the yoke you can catch you fingernail on, go buy a new yoke , because the new seal will not seal on that worn groove. You may get lucky and the new seal will be a little different, enough to wear in a different spot. (never my luck.... ). There are Sleeves available to slip over those yokes to repair the grooves, very thin steel sleeves, use loc-tite to hold em on.I have used these and they do good.
I would use a new nut if I were you , they have a locking friction that should only be used once... (yes, people re-use em all the time...).
I found this Video, might help ya out if you decide to tackle the job... "BH"
Chevelay, but the seal works the same...
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Old 04-17-2012, 01:16 AM   #6
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Question... I'm guessing you would test the bearing load on the pinion nut as you tighten without the carriage in the differential???

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