no 72-80 is not the same as 81-93 cabs. wiper motor, heater box wiring plugs are different. 72-80 cabs don't have the upper body line, roof is different. some of the older cabs only have lap belts and no mounts for sholder strap....packey;465082 said:It might suprixe you but the year range on the cabs would span from 72-93. CTD cabs had a little different hole in the fire wall and I think used the big block tranny hump. I have put a 91 cab on a 73 truck and all sheet metal matched up just fine. as was said before their are many many cabs with clean rockers cab corners floors on them. the mor common parts like thise you can also find roplacemtn sheet metal for.