i find i have a leak right at my mounting flange, part of it is eaten away , (small area) can i aluminum weld it , are fiberglass it then put on back the bellow with the clamp ? it happens more if i trim the foot up. i dont want to pull this all down again it is a night mare , but if i could have a safe way to fix this i would be thankfull of . (1992 regal 233xl 5.7 litre)