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Car is popping outta gear... Help!

Discussion in 'The Hokey Ass Message Board' started by Saubo Nasty, Aug 21, 2007.

  1. Saubo Nasty
    Joined: Mar 6, 2007
    Posts: 84

    Saubo Nasty

    3 on the tree with a saginaw trans.
    Pops out of third while around 70MPH.
    The is no warning, shake or anything before this happens.

    Any suggestions on where to start?

    Recently replaced: clutch, pressure plate, and driveline.
  2. I'm not much on trannies, but have you replaced the synchronizers? That could be it.
  3. SlowandLow63
    Joined: Sep 18, 2004
    Posts: 5,957

    from Central NJ

    Check the adjustment on the 3rd gear linkage. You may not be fully engaging 3rd gear. Either that or the synchros are getting worn. Recent rebuild?
  4. 4HawkRod
    Joined: Sep 20, 2005
    Posts: 926


    Try replacing the Shiftfork.

    I had the same problem with my 235 Chevy with three on the tree.

    Only did it at the higher speeds

    good luck


  5. squirrel
    Joined: Sep 23, 2004
    Posts: 50,885


    lotsa things can cause it, including loose motor/trans mounts, wrong bellhousing (centering hole too big so trans is off center), worn input shaft synchro teeth, worn synchro sleeve, worn transmission bearings, as well as shift fork or linkage problems.
  6. gasheat
    Joined: Nov 7, 2005
    Posts: 714

    from Dallas

    There is an adjustment to the linkage. Your trans in probably not fully engaged in third and that why it jumps out. Adjust the throw of the linkage by putting everything in line while in neutral and go from there.

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