60 to early 63 4x4 frames are different than later 63-66. Early frames used a single engine mount, steering gear is different, early models used a hydraulic clutch, rear shock mounts are different, cab and bed mounts are in the same location (I think) but look a little different.. You might be better off looking for a complete truck.. Be patient they're out there.. Match up the serial numbers from the cab and the frame.. Just my two cents
