I wish I would have thought about that when I did the gas tank on the 73 Charger.Mojack said:Ok, with work and all the other stuff life is made of, I finally came up with a way to "tumble" the gas tank. Lanty's suggestion is great, but I didn't have a suitable vehicle to use since the TD is the one being worked on. I had a not so great wheel project made from a gear reduction unit and some well used tumbling media from work (never throw anything away). I tipped it on it's side to get the right action and Bob's your uncle. Now, how do I get all the rust powder out of there? Water hose and then a bottle of rubbing alcohol to get rid of the water?