Alright, is there any possible way that i can fix this gas panel rust without replacing the quarter panel? I bondoed all of the rust and sanded everything down about september of last year, had it professionally done by my uncle (i helped) but alas, the rust has already returned. Paint is chipping away and the bubbling is already back. This is a coupe, so quarters in michigan are hard to come by that aren't completely destroyed. Any advice?