I have found a 1980's suburban and took out the IFS and the Power Steering and PS Pump. It was an easy swap so far. Had to drill out the three holes per side, to a bigger size on the frame. Than had to drill two new holes on each side too and that was it! It was super easy and saved me a ton of cash.

Here is a NEW pic.
http://i270.photobucket.com/albums/jj120/Chevanman/1966%20Chevy%20Suburban/IFSswap1980to1987pic2.jpg

Another pic:
http://i270.photobucket.com/albums/jj120/Chevanman/1966%20Chevy%20Suburban/IFSswap1980to1987pic1.jpg

The motor mounts off the 80's IFS will not work, but the 60's ones look like it will work out fine. Next is to figure out the Power Steering unit and steering.