[theastronaut]

I'm going with the three link kit from No Limit. The geometry of the links plants the tires better off the line and out of corners and won't bind as the suspension articulates.

From those pics, the tubular CPP trailing arms have a very stiff bushing design at the front pivot which will not allow much articulation without binding. Not a good design. The factory I-beam trailing arm design allows twisting which allows the axle to pivot more easily. You want the springs, shocks, and sway bars to control the roll stiffness, not the binding of suspension components.