it's somewhat like doing a SAS on an IFS truck, but the end result is much better. you can buy a pre-made hanger from one of the many vendors, and fabricate a shackle mount in the frame for the front springs. i'd HIGHLY recommend ditching your factory steering and going to hysteer on the new frame.

'79 sport 4x4 longbed <img src="/forums/images/graemlins/smile.gif" alt="" />
20/22R hybrid with EB's OS valves, 268c cam, offy intake, weber 32/36, thorley header, 5 speed swap, 34" LTBs, downey 3" springs, marlin hysteer, 4.88s and locked

'91 4x4 shortbed
22R-E, W56, the dd!