I'm fortunate enough to have access to a sandblaster, yanked out the rear, set it on a metal work table and blasted it, then went over the sanded areas with 180 grit sandpaper and then hit it with some commercial coatings (NAPA) black enamel out of my spray gun, good thick coat of paint. Unfortunately I am usually solo when it comes to working on my car and scratched up the diff pretty good installing it, but its a driver, not a show car.