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Thread: broken th350 bellhousing

  1. #1

    broken th350 bellhousing

    i have a 89 chevy s10 blazer with a 383 sbc and a th350. i have broken the bell housing on the trans three times. i've secured the motor and trans, they are not moving, the trans yoke has 1 inch of clearance, stiff drag shocks, a 4.56 rear gear,a mini spool and drag tires. if any one can help, thanks.

  2. #2
    Senior Member RACING JUNKIE
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    you secured the motor and trans? as in solid mounts? I would run a rubber mount on the trans.

  3. #3
    Senior Member DYNO OPERATOR
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    Run a poly trans mount.David.

  4. #4
    the motor mounts are solid and the trans is a new stock rubber mount.

  5. #5
    Senior Member DYNO OPERATOR
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    I repeat- solid mounts, or motor plates; POLY TYPE TRANS MOUNT! David.

  6. #6
    Senior Member RACING JUNKIE jmarksdragster's Avatar
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    Rubber mount is fine, you have to allow for chassis flex. Look at your pinion angle, make sure you have no more than 4 degrees. Are you using traction bars? What kind? When I had my chevelle I used plumbers strap to keep the rubber mount intact if it broke.

  7. #7
    no traction bars and the pinion angle may be off, i put a 2/2 inch drop.

  8. #8
    Senior Member RACING JUNKIE jmarksdragster's Avatar
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    That will do it. Correct pinion angle and run traction bars the limit housing rotation.

  9. #9
    thanks jmarks, how exactly did you use plumbers strap?

  10. #10
    Senior Member RACING JUNKIE jmarksdragster's Avatar
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    I ran a 1/4" bolt front to back through the metal part of the mount, and ran the strap under between the mount and crossmember. It would limit the mount from pulling apart, but still allow the mount to absorb the flex.


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