[NakeDiesel]

When you get axle wrap, the differential is trying to twist, the long traction bars prevent that and are held in place by the connection at the frame. The shackle is there to help with suspension travel so that it doesn't bind as the suspension cycles. I have solid rubber mounts in the back at the axle and heim joints at the 2 bars connection point and at the frame point. If I was doing hard core off roading and needed more flex, I'd make the front where it could swivel as well