UMI 6425 4-link kit boosts traction, handling & comfort for C10 trucks

The UMI 6425 kit replaces the outdated leaf spring setup on your C10 with a race-inspired 4-link rear suspension system featuring unequal length trailing arms, an adjustable panhard bar, and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 it’s weekend cruising, autocross, or high-power builds, the UMI 4-link delivers proven results.