Already have a Rubicon Express long arm system and want to change your suspension in the rear to a true 3-link? Here is what you have been looking for. Triangulate the rear of your TJ and eliminate the rear track bar that can cause lateral axle movement. The kit features HD SF1 pivot ball assembly, attached with 5/8 grade 8 hardware providing superior strength and up to 32 degrees of misalignment. **Exhaust modifications required.