kruzeag,,the C30 was a different animal back then,, they were real one tons,heavy thick channel frame w/leaf rear springs,if you had had a 3/4 ton or less it woulda worked,,I know a fella has a 64-6 swb GMC on a mid 80s 4x4-there is a drop in the frame behind the cab,,he used body lift spacers to mount cab. It is not real pretty but evidently works. the 88-up frames are flat but not sure how they work out. for me personally a 4x4 must have a solid front axle tho,,brian
