Rancho Front and Rear Suspension Shocks for 2011-2018 Silverado and Sierra 2500/3500 with a 4" lift feature the RS55380 (x2) for the front and RS55381 (x2) for the rear. This set includes two RS5000X shocks for the front and two for the rear. Designed with Rancho’s advanced rebound valving and innovative compression technology, these shocks enhance your vehicle’s handling and performance both on and off the road. Engineered for durability and superior ride quality, they are an ideal upgrade for lifted trucks.
• Progressive Engagement Valving
• Tuned Compression Control Valve
• Enlarged 2-1/4-inch Twin Tube Body
• Gas Pressurization of Shock
• 16 mm Nitro-Carburized Rod
• Full-Displaced 35 mm Bore
• 1-3/8-inch Diameter Sintered Iron Piston
• Rebound Bumper
• Black, Natural Rubber Bushings
• Low-Friction, Self-Lubricating Seal
• Protective Boot
• Glass-Filled, Fluon Banded Piston
• Double-Welded Loops
Front Shock Specs:
Compressed Length - 16.69"
Extended Length - 22.97"
Travel Length - 6.28"
Rear Shock Specs:
Compressed Length - 17.87"
Extended Length - 29.63"
Travel Length - 11.76"rancho