Traxxas replacement clutch bell will fit all Traxxas 1/10th scale Nitro Vehicles. Replaces worn or damaged clutch bells. Constructed of hardened steel. INCLUDES: One Traxxas 22 Tooth Steel Replacement Clutch Bell. Two 5mm x 11mm 0.5mm fiber washers. Two 5mm E-clips. Required Parts Disassembly of flywheel, clutch shoes, and adapter unit. Two 5mm x 11mm bearings