5 lug 1/2 ton to 8 lug 3/4 ton swap

[Jimmy Canuck]

I am building a 79 1/2 ton 2wd from a parted out 79 3/4 ton 2wd.
I want to use the 8 lug rear end and front, but am not sure how much of the suspension I will need to swap out as well. Will the 3/4 ton spindles bolt up to the 1/2 ton a-arms? Also, will the rear 3/4 ton springs bolt up to the 1/2 ton hangers. Everything is at stock height. I just want the new gm wheels that the new 3/4 tons have.

Also, are the frames on 1/2 tons and 3/4 tons the same? Both trucks had 350's originally.