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My damper is showing signs of corrosion and i would like to change it for something better anyway, its just a cheap summit item. Should the rotating assembly be rebalanced when changing to another damper?
 

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If it's an externally balanced engine, the counterweight needs to be in the correct position and weight, otherwise it will vibrate like crazy!!! Had a buddy once that put a 400 balancer on his 350....Didn't understand why it shook so hard...said it wasn't too bad at highway speeds....never broke the crank though, and I replaced it with the correct one. Problem solved!
 

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Wire brush & tin of paint would be cheapest fix....& a LOT easier if dampener is an interference fit on the crank.
 
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