Right wire, but even a good sandblaster that won't overheat will not be able to knock out the rust in unreachable places. And neither will anyone using a DA or any other approach. There are areas within your cab that are enclosed and boxed in where you would have to drill out spot-welds to get to them. Those will always have rust. That's why I say next time it's the "Big Dipper" for me. Hey, that's a great name for a acid dip company, "The Big Dipper Inc.".
Motto "Get dipped at The Big Dipper".
