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72 Blazer Automatic Trans/Transfercase

Discussion in 'Chevy Blazer Forum (GMC Jimmy)' started by Tybradley, Aug 13, 2014.

  1. Tybradley

    Tybradley New Member

    My son and I are restoring a 72
    Blazer and the transmission fluid is leaking over into the transfercase. We pulled the transfercase and checked the inner and outer seals on the thru-put shaft. We replaced the inner seal as it was damaged. We put everything back together and the problem still exists. We ordere a service manual and factory assembly manual and gained no insight as to the problem. I'm suspect that the seals may be in backwards. Stumped....any suggestions are greatly appreciated. My sixteen year old is anxious to get it on the road. Many thanks for looking!! Tybradley
  2. BurbanMan

    BurbanMan Member 1 Year 500 Posts

    Which tranny/T-case?
    TH350/TH400?
    Did you ensure that the seals were the correct size for the shaft before installation?

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