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Pinion seal leaking, help with change

Discussion in '40- & 55-Series Tech' started by spike6901, Aug 5, 2005.

  1. spike6901

    spike6901

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    Can I get to the pinion seal on the rear differential from the drive shaft side or do I have to pull out the entire gear set?
     
  2. treerootCO

    treerootCO Where are my keys?! SILVER Star

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    you can get to it from the driveshaft side but....

    You are going to need air tools or get real creative. Also, didn't 79+ use crush sleeves for pinion backlash? I would assume you can reuse it but it isn't a good idea?
     
  3. IDave

    IDave

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    Check carefully for surface wear on the diff flange surface where it contacts the seal. I found a new seal did nothing for my leak, and it was the speedie sleeve that cured it.
     
  4. treerootCO

    treerootCO Where are my keys?! SILVER Star

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  5. cruiseroutfit

    cruiseroutfit Supporting Vendor Moderator

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    Of course if your paying $33.99 for a speedi-sleeve, get a new flange :D

    Napa is one of the better Speedi-sleeve sources here in town, usually ~$20-25
     
  6. PabloCruise

    PabloCruise SILVER Star

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    Spike,

    Take it from me, if the pinion seal is leaking, it could be because your pinion is flopping around.

    Or you have a groove on your pinion.

    But nce you pull the pinion, go in there and look at the shims, make sure they have not cracked or spun...