For any and all chevy gurus. i've got an 84 custom delux 2wd longbed, great condition, but would like to put the body on a 74 cheyenne 4wd longbed. can it be done? the chasis and all running gear on the 74 is straight and in good shape but the body is trash. the body mount bushings would change, but would the mounting holes line up? i haven't pulled anything apart yet.