Birfield questions 80 series

Discussion in '80-Series Tech' started by FJ55partsBoise, Feb 21, 2004.

  1. FJ55partsBoise


    Likes Received:
    Jun 8, 2003
    I have heard a few 80 owners say they will run the birf until it blows, never changing seals or inner oil seals etc. How expensive can this be worst case?

    What is the deal with maintaining the rear axles on a 80? I have done two birf's on a 40 series but never knew to mess with the back axle of the truck.

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