1-ton springs are wider by 1/4" (at least they are on '54-'55.1). You might be able to use 3/4 ton underpinnings if you modify the spring shackles or add spacer bushings to the shackle pins, but I wouldn't trust that kind of modification to haul a load.


1955 First Series GMC 250 1-Ton Panel
In the Gallery
Mr. Hedgehog - Follow the build
If you can't laugh at yourself, I'll laugh at you.