I have found that epoxy primer works well while filling the holes where the old spotwelds used to be to weld the new panels to the ones underneath. I have also used weld-thru primer and have found that it is not indestructible from this welding process.
I make sure to spray more epoxy primer after the welding has been completed. THIS is what will save your butt down the road.


1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission