This Shock Set provides a pair of assembled aluminum big bore shock absorbers filled with high-quality silicone shock oil for fast and efficient shock replacement on your vehicle.Features High-quality anodized aluminum big bore shock bodies Tough molded shock caps, shock seal cartridges and preload adjusters Strong 4mm stainless steel shock shafts for long-lasting durability Tough composite shock rod ends, spring retainers and pivot balls Smooth silicone o-rings Supplied assembled Ready to bolt on to your vehicle after fitting your choice of spring Additional tuning preload spacers supplied SPECIFICATION: Length: 132mm (center to center) Internal Bore Diameter: 15mm Included Shock Oil: 500cSt Silicone Shock Oil Piston: 1.3mm x 4 hole pistonsIncludes2 x Assembled Shock Absorbers 2 x 3mm Preload Spacer 2 x 5mm Preload Spacer 2 x 7mm Preload SpacerRequiresSprings: #ARA330761 #ARA330762 #ARA330763