The upper 2 links keep the axle from rotating keeping the pinion angle as constant as possible. Besides these links controlling and transmitting the loads placed on the axle during acceleration and braking the bottom links also control the axle placement front to rear.
Bds 6 4 Link Lift Kit
2 link vs 4 link suspension. The center link will be straight up and down only at 14 and 34 travel. Especially when you take into consideration that the jk an off road titan by todays standards comes factory equipped with 4 links. In this article well cover what we consider to be the three most important elements. Also because there are two bars limiting movement the links need only be half as strong as a panhard bar. Anti squat anti dive and roll center. Its like having an argument about using a screw driver as a pry bar vs using a pry bar as a pry bar.
Anti squat anti dive roll center. Sure millions of people use a screw driver as a pry bar. But when it comes down to all the lit. The bottom 2 links keep the axle in place front to back. The four link rear suspension is designed to locate the rear axle with four links two on each side. But out of those how many of them break.
A 4 link suspension system does perform better in just about every way. One of the most common questions we get about suspension setup and tuning is how 4 link geometry affects the performance and handling of a vehicle. Here is ridetechs universal triangulated 4 link rear suspension system. On chassis work and geometry well a 2 link is not better than a 4 link. The 4 link rear suspension. Even though we are talking primarily about the front suspension it is clear to me that the 4 link is regarded as the superior design by many.
Beyond that one basic function the two designs begin to differ.
Gallery of 2 Link Vs 4 Link Suspension
