yea i think the Chevy C-40 and the GMC 3000 are close to the same truck. . .bigger than a 1 ton not quite a ton and a half. . . If i was put a size on it I would call it a 1-1/4 Ton !
truck has a GVWR: 12,500LB. . .

Mike


1962 GMC K3000, GMC-379 V6.