I had a similar issue on my 54' . After considerable research I used "Rust Bullet" , applied multiple coats per the instructions. Once the Rust Bullet has cured then apply an undercoating as suggested. That should provide rust prevention and the sound deadening. I attached a link below to an interesting article on Rust Bullet.

Beautiful Truck by the way !


http://www.secondchancegarage.com/public2/rust-bullet.cfm

Last edited by Dusty53; 01/19/2018 2:17 PM. Reason: added text

Ron - - Dusty53
1954 Chevy 3604
In the Gallery Forum
"You can't dance with the Devil and then wonder why you're still in Hell."
"They will forget what you've said, and they will forget what you have done but they will never forget the way you made them feel."