PRO RUNNER MONOTUBE SHOCK 99-12 F250/350 4WD Rear 2.5"

The Pro Comp Suspension ZX2021 is a Pro Runner Monotube Shock Absorber designed for late model trucks, Jeeps, and SUVs. Its gas-charged, monotube construction provides superior performance compared to traditional twin-tube hydraulic shocks. The shock body features a brushed, zinc-plated, and clear-coated finish.

The monotube design eliminates performance-robbing cavitation and dissipates heat more efficiently, significantly reducing shock fade. Vehicle-specific tuning, derived from extensive dyno and real-world testing, results in multi-stage valving that optimizes ride quality and handling for your specific application. This shock absorber is built to provide confidence whether towing a trailer or navigating desert terrain.