kinky6...
Yes it's a single axle rear, but it's a 1956 with front mounts on the 302. Absolutely no signs of any other setup on the frame, appears original. But the placard on the dash describes it as ARMY. Hence the question of whether it might be a one-off. Might be a freak of GMC nature....


Heavy metal worker--up to 4-inch plate.... If you can't cut it, burn it!