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  1. #1

    Default Transmission Issues

    2008 GMC 2500 HD with major Transmission issues. Coming out of the mountains and stopped to help a family who had sunk his truck in 2 feet of snow. Helping him getting his truck out, there was a very large bang from underneath my truck. I was in 4 low getting him out, looked underneath and found that I snapped the from u joint coming out of the front of the transfer case. That's the easy part. He is the list of issues:
    No park
    reverse was park, now no reverse
    Truck runs
    does shift automatically and manually on shifter

    Please help!!

  2. #2
    Jr. Engineer poncho62's Avatar
    Join Date
    Sep 2013
    Hanover, Ont, Canada


    The "U" joint problem should have nothing to do with the trans problem......Maybe, the shift linkage got knocked out of whack when the joint broke........

    1997 GMC

  3. #3


    Hello Shamrock,

    I understand that you are seeking advice on how to resolve this vehicle issue yourself and I might not be able to give you any technical advice. I would like to look into this concern for you. Please private message me referencing this thread if I can be of any assistance.

    Jennifer T.
    GM Customer Care

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