Fabtech 11-19 GM 2500HD/3500HD 2WD/4WD Rear Stealth Shock AbsorberStealth is the first all black monotube shock absorber, with an identifiable raised metal nameplate, that represents the signature of quality you can rely on for a superior ride at an affordable price. Stealth monotube shocks are built with 46mm diameter high flow piston and vehicle specific valving, for a great ride with oversized tires. All Stealth shock absorbers feature Nitrocarburized piston rods that are superior to chromed rods in durability