Hi unstable, I thought I'd let you know I am building a 48 Chev pickup with full jag suspension.
The front comes of with only 4bolts. There is 2 one inch bolts in the front and 2 3/8 bolts at the back.
If you want to use the rubber mounts you will need to cut off the front hangers.
At the rear there is 8 5/16 bolts holding in the rear plus the trailing arm. Everything seem to line up fro me. I hope that helps and if you have any other questions feel free and I have some pics if its any help