Quote:
Originally Posted by Russell Reay
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.
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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.