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Gearbox pops out of 4th

Discussion in 'T3 & T4 Tech Help Clinic' started by Dusty Waves, Apr 12, 2019.

  1. Dusty Waves

    Dusty Waves Member

    Messages:
    65
    Location:
    Qld
    My 89 syncro pops out of 4th (and sometimes 3rd) when I decelerate! I hear this is a common issue. Can anyone tell me what parts cause this please?
     
  2. hairyman

    hairyman Active Member

    Messages:
    388
    Location:
    Sydney, NSW
    I read a worn synchromesh in the 3-4 selector hub is the root cause of this problem. It affects all high mileage vw boxes unfortunately.
     
  3. Syncro27

    Syncro27 Well-Known Member

    Messages:
    6,002
    Location:
    Terrigal, NSW Central Coast
    Unfortunately it sounds like re-build time.

    From my understanding the gears wear on the edge which allows them to pop out - syncros or gear wear means a rebuild time.
     

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