Originally Posted by bigbadswingdaddy
I can't speak about the 235, but I had a 270 gmc with 270K on it. It ran great, and rust proofed the underside of the truck.

SO TRUE!


1951 1/2 Ton 216ci 4spd
1955 3/4 Ton NAPCO 235ci 4spd
1959 1/2 Ton stepside 235ci 4spd