Does anyone have a shop manaul that might show the GVW for a 1976 C65 Chevy medium duty truck? If it were a few years before or after, I'm sure that would be close enough. Anyone have a C65 with the GVW printed on the VIN on anywhere on the truck? I'm thinking of buying one for work, but wanted to check out insurance costs first. Apparently, it's based on GVW and the sticker is long gone on this truck. Thanks guys, Eric M.