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Technical TH350 Transmission Mount Bolts

Discussion in 'Traditional Hot Rods' started by dwleo, Jun 9, 2017.

  1. dwleo
    Joined: Aug 10, 2014
    Posts: 47

    dwleo

    Hi guys,
    As I wind down to my inspection date (June 15) I am replacing my mechanical fuel pump for an electric one as I could not overcome the drip of fuel from the fittings. I am also wriggling underneath and rechecking all bolts for tightness and re-torqueing those that require torqueing. And what did I find? I neglected to install the two bolts that go from the transmission cross member to secure the rubber mount. The bolts are in place from the mount to the transmission (th350).
    Does anyone happen to know the thread and length of these bolts?
    Thanks.

    - Daryl
     
  2. ididntdoit1960
    Joined: Dec 13, 2011
    Posts: 1,423

    ididntdoit1960
    Member
    from Western MA

    usually a 7/16 co**** thread
     
  3. Sheep Dip
    Joined: Dec 29, 2010
    Posts: 1,572

    Sheep Dip
    Member
    from Central Ca

    They are roughly about 5/8" long ....7/16-14
    Stick a welding rod up there for proper length and test with proper bolt/thread pitch
     
  4. squirrel
    Joined: Sep 23, 2004
    Posts: 59,983

    squirrel
    Member

    some of them are metric, just to make it more interesting...but try the 5/8" first. And they like to get rubber stuck in the threads when they make them, so the bolt might not screw in easily.
     
  5. dwleo
    Joined: Aug 10, 2014
    Posts: 47

    dwleo

    Hi Guys,
    I found a couple of bolts in my bolt drawer that were the right size.

    Thanks for all the info.
     

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