Shock Absorber for 1975-1996 Ford F-150 & More - Rancho RS55115

Dial in on- and off-road ride control with the Rancho RS5000X Suspension Shock Absorber (RS55115) — a Rancho shock absorber built around the brand's exclusive Cross Tuned technology, which pairs a rebound valving system with an advanced compression phase to help improve overall handling and performance on and off road. It's a direct-fit replacement across a wide range of trucks and SUVs, including the 1975-1996 Ford F-150, 1970-1979 Ford F-250 and 1984-1985 Toyota 4Runner — see the "Vehicles it fits" section for the full list. Available for front and rear positions depending on the application.

• Large twin-tube body: 2-1/4 in twin-tube design filled with all-weather fluid and nitrogen gas pressurized to 150 PSI to minimize air-to-oil mixing and help reduce damping fade and foaming; rated to withstand internal temperatures of -40 to 248°F.
• Strong and durable: 16 mm nitro-carburized piston rod resists scuffs and corrosion, plus double-welded loops at stress areas, a 35 mm sintered iron piston and a polyvinyl protective boot.
• Smooth performance: polyurethane rebound bumper and rubber bushings help absorb ride harshness while the fluon-banded piston enhances responsiveness to changing road conditions.
• Custom-tuned valving: Progressive Engagement Valving and a Compression Control Valve are tuned per vehicle to help regulate fluid transfer and maintain shock motion control.

Backed by Rancho's Limited Lifetime Warranty. Sold individually; replacing both shocks on the same axle together is recommended for balanced, even ride control.

Interchange: RS5115 · N8055