The nik-link uses a bell crank to compress the top of the coil over as well as the coil over compressing from the bottom a-arm. This gives more shock travel to control the spring they say. The ARB is a tubular bar bent downward at one end and is mounted across the chassis connected to the bell...
If you have a solid rear wheel drive axle controled by skewed upper,lower four link control arms and add a panhard rod in a effort to lower the rear roll center who is in control? At some point would a geometric bind be reached and cause heavy loading of the tires by locking the travel?
pintojoe