Timbren GMRCK25S SES Rear Suspension Bump Stops 99-10 GM 2500HD 2WD/4WD YUK-YA W25000 With these two enhancements used

With these two enhancements used together

Lights are available in both a white and amber lens

It features an aluminum impeller in place of the OEM plastic impeller

Provisions in the exhaust manifolds for exhaust gas temperature sensors (factory sensor or 1/8" npt) are provided

Timbren GMRCK25S SES Rear Suspension Bump Stops 99-10 GM 2500HD 2WD/4WD YUK-YA W25000 With these two enhancements usedEnhance the rear suspension of your 99 10 GM 2500HD 2wd 4WD with the Timbren SES (Suspension Enhancement System) to eliminate vehicle squatting and sagging and provide improved vehicle handling. This SES Suspension Upgrade replaces the jounce stop on the frame. Its unique design ensures superb ride quality loaded or unloaded. Each laser cut piece of steel is precision bent and powder coated to ensure a quality fit. Timbren engineered their hollow