, This is the replacement Gearbox Cases for the Team Associated RC18T RR 1/18 scale racing truck. This part mounts to the chassis and houses the front or rear differentials. FEATURES: Composite nylon construction, black in color YOU WILL RECEIVE: Two gearbox cases REQUIREMENTS: Installation following kit manual SPECIFICATIONS: Length: 1.25" (32mm) Width: 1.12" (29mm) Height: .76" (20mm) kpm12/07/2004 ir/jxs &