A brand new, Canadian-made tank for that truck is only $200. I wouldn't waste any more time with the original tank. It's rusting more and more since it wasn't coated with a gas tank sealer after the gravel treatment. But since high quality new tanks are available at such a reasonable price, I wouldn't bother with the sloshing compound.
The camera angle/lens on the second photo makes the tanks look like different sizes. They aren't.
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
