Traxxas 5460A Blue-Anodized Aluminum GTR Shocks (fully assembled w/o springs) (set of Four) Blue-anodized aluminum GTR Shocks are the ultimate in damping performance and consistent lap-after-lap control Machined, threaded, aluminum body with an oversized spring collar for easy and precise preload adjustments Vented spring perches help prevent dirt from packing around the X-ring seals Hard-chrome shafts resist stiction for smooth action and consistent performance Fully assembled in sets of four, complete with silicone fluid. Fits 1/10 scale Traxxas Revo, Slayer, and Summit models