Fenderwell and rear quarter patch panels

[Bruce Newbery]

I have welded in new fenderwells and new rear quarter panels and would like to know how far to bend the lower flange around the subframe. Also is it necessary to put in a antisqueek webbing in or not. My old rear quarter panels were so rusty that I could not tell what it was originally like. It seems like it could be a real good way of starting rust if done improperly.