Bent frame--how bad is it?

[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.