Question about 1995 Jeep Grand Cherokee

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1995 jgc limited rear end noise

Replaced rear pinion bearing, fresh lub, replaced race and sleave. noise is still there. while drive shaft is not connected the pinion shaft it is locking up in the differential. only in forward not in reverse. should the pinion shaft be little loose or tight.

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  • Michael Zangari
    Michael Zangari May 11, 2010

    When you replaced the pinnion gear/shaft, did you install the shims
    behind the bearins? Not all bearings are the same, a clearence of just
    .010 of an inch will make a big deal with noise. The pinnion should be
    snug with slight resistance while turning it by hand without the shaft
    on.

  • Richard Scordino May 11, 2010

    In total agreement with mike man... you must set pinion depth and ring gear lash to get it right...you cannot just put it back together. Additionally, binding in one place suggests that there may be some debris in another bearing, or debris from the first failure has damaged another bearing. To do this correctly you need a good dial indicator and depth/lash specs (I don't have them)
    good luck!


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  • Master
  • 508 Answers

If you removed the pinion and only replaced one of the bearings that was a mistake. You need to replace both at the same time. Also since it is a Dana differential you should have replace the crush sleeve also as this set the correct preload on the pinion bearings.

Posted on Feb 07, 2009

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sammyc47

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