Longer Service Life: Higher power reserves and a longer service life even when pulling transporters and trailers or during frequent journeys with loads. Shock Stabiity: Optimum grip and enhanced lane stability in day to day and extreme situations. Precise Handling: High traction and more precise handling thanks to Bilstein gas-pressure technology. Optimal Performance: All B6 shock absorbers and struts are tuned for each specific application to assure optimal performance is achieved. Vehicle Compatibility: This fits your 2005-2009 Workhorse W20 W22 Chassis Class A.