yeah everywhere around the mount has not corrosion it’s just under those rubber donuts. The amount of rust that dropped to the floor on each mount was amazing! Ordered all the proper size washers from classic industries and will proceed to weld in new donuts and grind smooth so it looks original. Need to order something to be able to spray the inside of the frame. Anyone have any suggestions?As an aside, I'd bet anyone who has never changed the subframe mounts is in for a surprise when they do.
The rubber flexes, so water and salt can get between the mount and the body floor. After 50 years of action, there is probably some serious rusting.
Yup. It's the only way to do it right. You'll be praising yourself when you can install the headliner upside down!