Output shaft seal

Discussion in 'GM Powertrain' started by thejms, May 7, 2009.

  1. thejms

    thejms Rockstar


    I have an 02 Sierra 2500HD. Auto trans with the 6.0L. My transfer case started leaking at the output shaft seal. No prob, I thought. I went down to checker autopart and got a new seal. When I went to put it back in the transfer case, the seal is loose, its not sloppy loose, but I can shove it in by hand and I can also spin the seal while seated in the transfer case. I thought maybe they gave me the wrong seal so I took it back and got another. Same outcome with new one. So then I went to Napa, hoping they had something else. Turns out its the same brand, I bought it anyway, just in case. Same outcome. I cleaned the old one up and tried to shove it in by hand and you can tell that it would actually take a hammer to get it in, like its supposed to. Has anyone had this sort of problem?
  2. GaryL

    GaryL Epic Member 5+ Years ROTM Winner 1000 Posts Platinum Contributor

    Sounds like they got a part number wrong, can you take your old one in and have them try to match it up. Maybe select a different truck from 02 to start your search.
  3. blueZ71

    blueZ71 Rockstar 100 Posts

    see if you can buy it off amazon or some other online retailer. i got a fuel pump and sending unit from ac-direct off amazon for 230, acdelco brand and all. 50 cheaper than some lame autozone brand
  4. thejms

    thejms Rockstar

    Well I just went to the stealership and got one, almost 2x the price of the napa ones. Fit like a champ though.
  5. RADO_4U2NV

    RADO_4U2NV New Member

    They were robly giving you the seal for a 4L60E and not the seal for the 4L80E you have. The transfer case is different size between the two.
  6. blueZ71

    blueZ71 Rockstar 100 Posts

    Bummer.. well at least you got it fixed

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