This was the first raw prototype as delivered from Nth Degree. On the left is the production TJ-sized shackle, which proved to be too wimpy for V-8 torque and 60-sized axles. It has since been upgraded with a larger design that incorporates a gusset and a centered Heim joint. The main bracket captures and surrounds the pinion snout through the hole in the front, while the sides reach back and attach to the axletubes via U-bolts. Further attachment to the diff is provided via a weld-on plate that attaches to the Dynatrac-supplied diff bridge shown at the far right.