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zf 5 speed

  1. The Garage
    I have a 1990 F250 351w ZF 5 speed 2wd 115k. I have 2 problems. 1. when it gets warmed up the trans (around the pass pto cover) sounds like it has a shaft or bearing about to come apart in it.. i guess more like a slight rod knock.. I had it checked out and he said he really couldn't see...