Oh and P.S. I also used the 3M wheel to strip the front side of the grill under-apron. I wire brushed the backside (sorry, forgot to take a pic) and sprayed it AND the grill with the Rust Reformer. Label says you've gotta wait 24hrs (grrrr...) to top coat. Pics of THAT hopefully tomorrow.
Stripped but Reformer on the mounts where the 3M wheel couldn't reach. I DID spend a while to scrape the loosest rust off with a flat screwdriver. Best I could do.
BEFORE:
AFTER:
