Silica + Pneumatics = GOOD.

Here are the rear cab mounts. One is freshly sandblasted the other is there for comparison. No amount of elbow grease, sandpaper or chemical can do what a sandblaster does. This is a must for any resto project. I rigged a blast cabinet out of an old trash can with some plexiglass on top . I cut a hole in the bottom of the can and put a 5 gallon bucket underneath. With hardware cloth in between the two it allows the sand to fall through and it can then be screened and reused.