Yea they went all the way back to the 60's in the internationals,

chevy there were special bodys for railroad service etc in the 60's too but pretty rare.

The 74 up square body gm trucks was a regular production option, even 3/4 ton crews.

ford I don't know that much about -rightfully so, cept all the 4WD bits are the choice stuff -ford got it, d60 DS high pinion front axle- 32 spline np transfer case-ford always got the best setup.