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NP205 shift rail seals

Discussion in 'The Garage' started by moneypit, Apr 16, 2005.

  1. moneypit

    moneypit 1/2 ton status

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    Anyone got the seal #?? Can these be changed on the truck without removal of the rails? Both of mine seem to be leaking pretty good now. Since I have the custom doubler xmember/skid off, it is the time to fix the leaks... :D TIA
     
  2. dyeager535

    dyeager535 1 ton status Premium Member

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    I won't guarantee the accuracy of this number, the parts manual doesn't show both seals, (nor both shift rails lol) but this LOOKS like it:

    Seal, Shaft, Oil 3979626
     
  3. moneypit

    moneypit 1/2 ton status

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    Thanks I will try that.

    Anyone know if they can be removed/installed from the outside, still in the truck??
     
  4. Stomper

    Stomper ΜΟΛΩΝ ΛΑΒΕ GMOTM Winner

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    I can't think of a way to do it still in the truck. When I did mine, I knocked them out with a punch from the back side, after the rail was removed. There's just no room around the shaft and bore to get anything in there to pry with.
     
  5. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Yes they can be changed with the T-case together and in the vehicle as long as you don't have the early 205 which has a welded bar on one of the rails. Also you will need enough room to use a piece of pipe or a socket to tap them into place. To remove the old seals just use a screw driver and get it between the shaft and oil seal and carefully pry it out making sure not to nick or scratch the shaft.
     
  6. keith

    keith 1/2 ton status

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    I have 2 extra seals from a kit. Send me your address and I will get those out to you. :D freebie :cool1:
     
  7. moneypit

    moneypit 1/2 ton status

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    You guys are awesome. Thanks for the info...
     

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