TRACKBAR, anyone here run one?
a panhard bar will eliminate the need for a rear sway bar...correct?.
No. An (anti) sway bar serves a completely different purpose. They basically "pull you up" by your own boot straps depending on which side you want to look at.
As the car leans DOWN onto the suspension on one side, the (anti) sway bar transfers this movement to the suspension on the OTHER side of the car, "picking up" the suspension on that (high) side of the car, as if letting a jack down
Otherwise, the unloaded springs on the high side are "helping" to lift the high side up and "roll" the body over
This causes the car body to stay "flatter" through a turn with less body roll, but doing so with less stiff springs
Really, all a panhard bar is doing is attempting to keep the rear axle centered in the body. If the leafs were "wide enough" and stiff enough, and the bushings and shackles heavy enough, they would do the same thing.