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Thread: Rear Pinion Seal

  1. #1
    MUDWEISER MYOTHERTANKISAJEEP's Avatar
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    Default Rear Pinion Seal

    Anyone got a site with an accurate rundown on how to change this in an 03 TJ? It is D35. Thanks
    Last edited by MYOTHERTANKISAJEEP; 02-08-2009 at 13:30.
    "Neither current events nor history show that the majority rule, or ever did rule." CSA President Jefferson Davis

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    Junior Member CJ2aChad's Avatar
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    You have to pay close to $20 bucks......but still cheaper than going to a shop and then you have all the factory service manual for all your future jobs......

    http://www.tradebit.com/filedetail.p...nual-2000-2006

    I used the same site when i was doing the clutch on my 2003 CBR600RR
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    Junior Member CJ2aChad's Avatar
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    Oh and also head warning about finding sites that you can download "free" service manuals off of. 9 out of 10 times the only thing you're d/l'ing is a virus..........take my word for it it's pretty nasty
    "Don't hold grudges because tomorrow my never happen!"

    "If you live for the weekend, you're missing out on 5/7ths of your life!"

    "Great danger lies in the notion that we can reason with evil"

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    MUDWEISER MYOTHERTANKISAJEEP's Avatar
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    Thanks for answering
    "Neither current events nor history show that the majority rule, or ever did rule." CSA President Jefferson Davis

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    Mountain Valley Customs
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    Changing a rear pinion seal is a 20 minute job. Remove your driveshaft from the rear yoke, remove the pinion nut, pry the old pinion seal out. Installation is the reverse of removal. I will get the torque spec for you tomorrow from All Data and post them.
    Mountain Valley Customs www.mvcustoms.com 570.217.7284
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    MUDWEISER MYOTHERTANKISAJEEP's Avatar
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    Quote Originally Posted by crazy4ink View Post
    Changing a rear pinion seal is a 20 minute job. Remove your driveshaft from the rear yoke, remove the pinion nut, pry the old pinion seal out. Installation is the reverse of removal. I will get the torque spec for you tomorrow from All Data and post them.
    TY. I'll wait for your post b4 I start.
    "Neither current events nor history show that the majority rule, or ever did rule." CSA President Jefferson Davis

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    There is not a torque spec on the yoke, however, before you remove the nut, with a paint pen draw a straight line on the pinion nut and the pinion threads. Count exactly how many threads are showing. Mark this information down. Then remove the nut and the yoke. Then you can normally pry out the sela with a screw driver and such. The neal seal will need to be gently tapped in with a block of wood and hammer. Make the seal flush with the surface of the housing. On the yoke, take a piece of like 240 grit sandpaper and rough up the area where the seal makes contact. It does not need to be really rough, just like 30 seconds worth of sanding. place the yoke back on, and tighten your nut. Make sure that you put the nut excatly back to there it was. Then turn it a 1/16 of a revolution more. I would put red lock tight on it that like a M-F'er. Normally I would never reuse a pinion nut. They are special lock nuts that after you take them off, they never work the same again.

    I say that the pinion is not torqued because the pinion nut has no torque value. The bearing preload of the pinion bearings is what has a torque value. The bearing preload on used bearings for a D35 is about 16 in. lbs. This basically means that there is 16 in.lbs. of spinning resistance placed on the pinion bearings while nothing else is installed in the diff. You have to compress a crush sleeve to tighten the nut down when you install a new pinion or nut, however if you do not utilize a new crush sleeve or pinion nut, you have to put everything back to where it was exactly and do everything you can to make sure it does not come loose. If that nut comes loose, you will be buying new gears, and possibly a new carrier.
    98 TJ, 4.5" RE springs, Custom stretched triangulated 4-link, Clayton Trans and Engine Skids, Hp60s, 5.38s, ARB front, Detroit rear, 37" BFG Krawler Red Label, H2 wheels, InnerAirLocks, and much more.

  8. #8
    MUDWEISER MYOTHERTANKISAJEEP's Avatar
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    Thanks a lot for the info. I appreciate it.
    "Neither current events nor history show that the majority rule, or ever did rule." CSA President Jefferson Davis

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