The four link rear suspension is designed to locate the rear axle with four links two on each side. On chassis work and geometry well a 2 link is not better than a 4 link.
Universal Rear Triangulated 4 Link Kit Brackets 2500 Bags Air
2 link vs 4 link 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. 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. Beyond that one basic function the two designs begin to differ. The upper 2 links keep the axle from rotating keeping the pinion angle as constant as possible. Anti squat anti dive and roll center. A 4 link suspension system does perform better in just about every way.
Especially when you take into consideration that the jk an off road titan by todays standards comes factory equipped with 4 links. The bottom 2 links keep the axle in place front to back. In this article well cover what we consider to be the three most important elements. Sure millions of people use a screw driver as a pry bar. 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. Also because there are two bars limiting movement the links need only be half as strong as a panhard bar.
Here is ridetechs universal triangulated 4 link rear suspension system. But out of those how many of them break. The 4 link rear suspension. But when it comes down to all the lit. The center link will be straight up and down only at 14 and 34 travel. 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.