Two years ago the rear seal on the master cylinder let go and dumped fluid all over the floor pan. I replaced the cylinder and cleaned the top and bottom of the pan. Obviously the fluid got under the paint and undercoating and when I was recently working under the car I found that the undercoating was peeling off and there was surface rust on the pan-nothing structural. I spent a few hours with a putty knife and wire brush and primed it. Today the paint was cured so I applied spray on undercoating. Of course the valve kept jamming so it was messy. It's no fun laying on your back under jack stands. I need a lift! What we do for the madness-enough ranting.
Joel