Bell housing, Starter and Shaft Coupler Bolts

Discussion in 'Mechanic's Corner' started by MATTHEW D ROBANO, Jun 26, 2020.

  1. MATTHEW D ROBANO

    MATTHEW D ROBANO Active Member

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    Hi does anyone know size and length of the following bolts on a 1990 351w PCM with a 1:!

    Velvet Drive. I had someone take apart my transmission and engine to get to my flywheel

    last September since I needed a new ring gear. I finally got to start to get everything together

    and can't find the Bell Housing Bolts, The Starter Bolts or the Shaft Coupling Bolts.

    The Only bolts I was able to find where the bolts that attache the transmission to the bell

    housing because I took them off and put them in a box when I sent off the transmission to be

    resealed and bench checked.

    If anyone knows the sizes and lengths please let me know I am trying to get this put back

    together.

    Thank you in advance

    Matt
     
  2. Gary S

    Gary S Well-Known Member

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    PCM parts book says belhousing bolts are 5- 7/16" x 1 1/4" and 1- 7/16" x 1 1/2 for the bolt that the grounds attach to but all 6 of mine are 7/16" x 1 1/4". Starter bolts are 3/8" x 1 1/4" mine has an Arco starter if that matters
     
  3. Mistress

    Mistress Well-Known Member

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    If you buy new ones and replace them, then the originals will show up.

    When I did my flex plate, I bought some super corrosion resistant coated bolts from McMaster Carr. Had to buy a box, but they weren't too expensive.
     
  4. MATTHEW D ROBANO

    MATTHEW D ROBANO Active Member

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    Thank you the information I was in a bind had no idea what to get.
     
  5. MATTHEW D ROBANO

    MATTHEW D ROBANO Active Member

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    I was able to get the correct bolts from Ski Dim - Thank you to everyone for you help
     

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