I can't tell you about the 3/4 ton. The 1/2 ton is a pretty straight forward swap. It works well. To answer some of the questions, I will only address what I know.
The frame rails measurements are the same. It is a direct swap as far as the fit. Bolt up the factory holes that line up. Mark and drill/oblong the other 4 holes. From that point I used parts for the late model front suspension.
63-87 will all be this direct of a swap. 73 to 87 have disk brakes, so that is the reason I made the swap, along with getting rid of the torsion bar suspension.
Donor vehicles would be 1973 to 1987 1/2 ton, 2 wheel drive Suburban and pickups. Vans may work also, but I cannot tell you for sure.
For the shocks I bought new ones for the front suspension I swapped in. I bolted them to the bottom A-arm, and mounted them where they naturally wanted to be on the frame. I cut off the old frame shock mounts.
The steering gear I used was a late model quick ratio. There is a mount kit you use with the new power steering quick steer box. It mounts on the outside of the frame nearly in the same spot.
Trust me that this swap is quite simple. I assembled it as a whole piece onto my frame. One thing I did was leave all the shims for alignment in their original places. It makes alignment a little easier I am told. Something about making true center easier to find.
That is more instructions than I had to do my swap when I started. Good luck.
Last edited by Builder; 02/28/2020 6:51 PM.
