This is a Hot Racing hard aluminum differential case for the Traxxas TRX4 chassis this differential case features a 6061-t6 aluminum body with hard anodizing. this combination of light weight aluminum high strength surface is needed to give full performance for little wear and tear. FEATURES: aluminum construction diff case YOU WILL RECEIVE: one hard aluminum differential case SPECIFICATIONS: out drive plate length: REQUIREMENTS: installing gear set and all hardware (8282) attaching to bevel gear COMMENTS: - Do not over tighten |