Those newer frames are going to be really wide for an AD.
Gm/Chevy trucks started using IFS (torsion bars up front I believe from 60-62) in 1960. Full, modern style in 1963. The footprint of all trucks after this are wider than the AD. Most frame swap guys go for an 1980’s S10 longbox frame. The wheel base is very, very close, and the front end is just a twitch narrower than the ADframe. Slightly offset rims get it close. It is MUCH more apparent when people try to move the rims “in” on a full size (63-00) frame swap. It just looks funny. The rim is darn near rubbing the fenders and it looks wrong.
As for a BIG bolt, i am not sure of the dimension of the front sheetmetal. This could change your mind.
The 1 ton sheet metal IS THE SAME as the 1/2 ton’s.
Pm Coilover. He might shed more light for you.