I did the Toyota axles on mine, and used leafsprings, I did not need to extend the frame at all.
I will try to get some pics up soon.
I am running one of BOONDOX's protype sas kits.
Hopefully the kit will be on the market soon, I love it and have been running it for over a year now, with no issues
I know Steve at Boondox would have liked to have the kit on the market by now, but some things came up, that took priority over his business, so the kit got put on the backburnner
I started with the spring under version, but I think I am going to go spring over soon