UMI 6425 4-link kit transforms C10 handling, comfort & tractionThe UMI 6425 kit replaces the outdated leaf spring setup on your C10 with a race inspired 4 link rear suspension system featuring unequal length trailing arms, an adjustable panhard bar, and high performance Viking coilovers (add on). Engineered for serious street and pro touring enthusiasts, this suspension kit is tuned for maximum traction, precision alignment, and stellar ride comfort. Whether its weekend cruising, autocross, or high power builds,