Get premium control and performance with Rancho RS9000*XL shocks. Recognized as the first nine-position manually adjustable ride control series in the off-road market, RS9000XL shocks are ideal for on- and off-road use, towing and more. Rancho RS9000XL RS999045 Suspension Shock Absorber 1999-2016 Ford F-250 Super Duty (Rear) (Drive: 4WD / Qualifier: with Rear Raised Height 5.0 (in) to 6.0 (in)); 2005-2010 Ford F-350 Super Duty (Rear) (Body: Standard Cab Pickup, Extended Cab Pickup, Crew Cab Pickup & Drive: 4WD / Qualifier: with Rancho Suspension System, with Single Rear Wheels (SRW), with Rear Raised Height 4.0 (in))