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Oldsmobile - Technical Discuss 403 Balance Problem in the OLDSMOBILE CLUBS forums; I have a 77 403 that Iv converted to a manual trans. Im using a flywheel off of an olds 260. I suspect this is giving me a slight vibration ...
  1. May 1st, 2005 #1
    jimrose
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    403 Balance Problem

    I have a 77 403 that Iv converted to a manual trans. Im using a flywheel off of an olds 260. I suspect this is giving me a slight vibration at all rpm ranges. Can anyone tell me if this engine flywheel combination will work? Thanks, Jim
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  2. May 2nd, 2005 #2
    49rocket
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    Re: 403 Balance Problem

    you might try using a 260 harmonic balancer
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