I found some pin holes in the metal in my 67' on the wheel lip so I am going to weld in a new small repair patch since other than that the qtr's are beautiful.

My only problem is how in the heck to epoxy the other side of the butt weld because of the damn inner fender well. Other than cutting a access hole in the inner fender well and spraying or brushing through it, but then I would have th issue of sealing it up.

Do I just use weld through primmer on the back side and hope for the best?

TIA, Zach

Spray it through a wand. Eastwood makes them but you can make your own for dirt. Spray it in there adequately and it will wick in.

I used Eastwood rust inhibitor, the same stuff that was used back in the 60's and 70's to rustproof the rust buckets Detroit was making. This is a good product to use inside all your fenders and rockers. It takes a undercoat gun and a wand, as stated. The guns can be bought from chinese tool sellers for under $20 and a piece of flared brake line will make a wand. I do inside the quarters, over the inner fenders, where the quarter attaches to the rocker, the lower front fenders, the lower inside of the doors, and I remove the door sills and make holes there to spray it in the rockers. I also sprayed inside the trunk around the tailight panel and where the trunk floor and rear valance are attached. None of this is visable when the car is done.

I spray a heavy coating and let the car set for a day or two. The stuff will drip out of all your weep holes and won't set up for a day or so. I then do a second coat.

This is a non hardening barrier that supposedly heals it self if scratched or broken.

I just hate the idea of new sheetmetal, but the same crummy moisture holding designs of the 60's. After all the work it takes to rebuild a body and do a great paint job, I hate to think that in 15-20 years the moisture in the pinchwelds where the paint is burned off will cause rust.