just picked up this truck Needs some help

[onesmokinduramax]

I just got a 1975 chevy 3/4-ton,lifted built up 350,400 trans,205 transfer case. Dana 44 lockers,4x4 with low and high gears. 42" tires . The only bad thing is the body is bad rough! The guy that had it used it to haul wood and theres big dents in the bed and cab and rusty. But could not pass up on the trade..i had a none runing 83 ford ranger we traded even... I own all chevy's and been wanting a older
4x4 truck...

Heres the thing i need ya help with. I have been keeping a eye out for a parts truck what year will bolt right up to this frame without any mods some one told me 73 to 89 but i was thing it was 73 to 86...

One other thing i know in the 80s the cab and front end chaged some what about the beds? I found a 77 with good cab and front end but the bed is bad and found a bed from a 84... Any one with some good info

Ill try to get pic on here new guy here got get a hang of this site