Application tuned for precision on-road and off-road handling, Rancho? RS7MT? monotube shocks are highly effective in the dissipation of heat, making them ideal for extreme off-road use and larger wheel and tire packages. RS7MT shocks feature an integrated dirt wiper sealing system that keeps dirt and debris out, hardened piston rod that resists scuffs and corrosion plus an internal rebound bumper to smooth out your ride on any terrain. Rancho RS7MT RS77261 Suspension Shock Absorber 1999-2016 Ford F-250 Super Duty (Rear) (Drive: 4WD / Qualifier: with Rear Raised Height 4.0 (in), with Rancho Suspension System, with Rear Raised Height 5.5 (in)); 1999-2016 Ford F-350 Super Duty (Rear) (Body: Standard Cab Pickup, Extended Cab Pickup, Crew Cab Pickup & Drive: 4WD / Qualifier: with Rear Raised Height 2.5 (in), with Rancho Suspension System, with Single Rear Wheels (SRW), with Rear Raised Height 2.0 (in))