Von,
Measure your outside frame width for your front suspension, and look for IFS donors with the same frame width. Take a look at 1973-1987 GM trucks, I here that it justs bolts to the frame and is easy to install on older trucks. Some say that it is too wide for an Advance Design truck, but may work will on a Task Force truck, so check it out. I plan on trying this on my AD truck because I bought a 1976 Chevy truck for $40, so I really have nothing to lose if it is too wide for my truck. You may be able to find a truck like this for next to nothing and use the front suspension and rear differential and have the same bolt pattern.
Phil
