i dont know if it was the right way to build them but i just use a peice of angle iron bolted to the frame with square stock welded to the angle iron that goes back to the rear axel with flat bar welded to the square stock with 2 holes drilled in used a ubolt to bolt it to the axel this was on a 70 f250
I'm sporting a set of Caltrec's on my F-150. Not sure what they offer for yours though. They can also custom build them to your specs. I started getting wheel hop when I switched over to M&H 28x11.5 slicks at the track.