UMI 6425 4-link kit boosts traction, handling & comfort for C10 trucks 2001 Pontiac Firebird The performance rebound curve minimizes

The performance rebound curve minimizes body roll and prevents a floating feeling

Ultimate in two-cycle performance

Cleans injectors

Compatible with all OEM diameter factory and aftermarket (lowering) springs for S550

UMI’s GM A-body bump steer kit for 1971-1972 models is designed to improve handling and straight-line stability by reducing or eliminating toe change during suspension travel

UMI 6425 4-link kit boosts traction, handling & comfort for C10 trucks 2001 Pontiac Firebird The performance rebound curve minimizesThe UMI 6425 kit replaces the outdated leaf spring setup on your C10 with a race inspired 4 link rear suspension system featuring unequal length trailing arms, an adjustable panhard bar, and high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,