I could be losing my mind but I thought I had found a thread some short time back about a 60's suburban converted to 4x4 using a late square body suburban donor truck. Had some good pictures in the thread as well. I cannot find it again to save my life and need some info on swapping the rear axle spring hangers onto a 66 GMC. I have a decent idea of what I'll have to do just a big commitment to remove the original and set up and drill holes for the 80 suburban 14 bolt axle I have.
Thanks everyone.