HPI Racing rear shock repair kit boots and shafts are fully assembled and ready to install. Restores proper performance to worn or damaged rear shocks. This product includes 3.4oz (100cc) bottle of 20W shock oil. Two 20x80mm Shock Boots. Two 4x115mm Shock Shafts. Two Parts Sets, (Caps, Pistons, Rubber O-rings, Spacers, Pads and Seals).
Filling resevoir with oil and threading on upper section.