I have moved the axle back by using the perches that have 3 locator holes, just set up on spring bolt on the front hole for approximate 1 inch rearward location. The bottom plates need modified to center on bottom of springs for u bolt installation and proper shock mount clearance. I have also fabbed inboard front hangers by welding a mounting plate offset on the spring hanger then drilling holes for studs. I have pictures somewhere on this sight from last year, I will look for them and post if I find them.
