LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

383 Vibration problems

Old Nov 11, 2003 | 05:10 PM
  #16  
AndyB's Avatar
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From: Usa
Looks like it was the flexplate that was out of balance. according to the machine shop it was 1lb out of balance at 1,000rpms and 5lbs out of balance at 5,000rpms.

After balancing it is 1lb off at 5,000rpms. So I'll throw it in tonight and see what happens Thanks everyone!!!
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