Feature●Ten-stage velocity sensitive valving - Provides tuning specific for each vehicle●5/8-inch (16mm) diameter piston rod (select applications) - Adds strength and durability●1 3/8-inch (35mm) diameter piston (select applications) - Ensures performance in any environment●Protective boot included - Protects the shock rod and oil seal●Limited Lifetime Warranty - Guarantees your investmentDescription The shock that started it all! Rancho RS5000 series has been the shock of choice for light trucks and sport utility vehicles since 1985. Available for stock and lifted applications, RS5000 is ideal for on and off-road use, at an affordable price. Covered by Ranchos limited lifetime warranty.