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Old 07-19-2021, 05:05 PM   #8
BRENT in 10-uh-C
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Join Date: May 2010
Location: Eastern Tennessee
Posts: 11,521
Default Re: Bent frame--how bad is it?

Quote:
Originally Posted by Russell Reay View Post
I just laid a 4 -foot carpenter's level on the frame, centered on the middle cross-member. The sag is about 1/8 of an inch right at the x-member. There are no cracks, and no other evidence of trauma to this frame. Is 1/8" enough that I should have the frame straightened before putting the car back together? I read Les Andrews procedure for frame straightening, but I would probably take it to a shop. I don't wish to ignore a good situation in pursuit of perfection, but neither do I wish to be foolish and neglect this flaw if it will be the source of problems in the future.
Yes, 0.125" is WAY too much. Let 0.000" be your target. It is very obtainable.

Not sure of Les' recommendation however I can share with you that using a jack to bend a bent frame is the incorrect way to do this. This topic has been discussed several times here, -and heat & metal shrinking is the only proper method to repair a frame where it will last. Think of a bend in the metal the same as a wrong, ...and we all know that two wrongs do not make a right.
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