[69chevy lwb]

It keeps the rear end perfectly centered through the suspension cycle and most of all looks sweet! But really is only necessary on a truck with oversized wheels where you can't afford the small amount of shifting a panhard bar gives you. You can also use the watts link to change the roll center of the suspension and the direction of drive to some degree as well. But you need to know quite a bit to figure all of that out. Rob at no limit could tell you much more than I can he has one on his hell boy c10 that's actually mounted parallel to the ground under the differential. Go check that out!