This is actually the durable Carrier Differential to be utilized on Traxxas Summit Truck RTR. Features Traxxas 5681 Carrier Diff Heavy Duty/Linkage Arms/Gaskets Nylon construction Ebony in color articles 1x Durable Differential Carrier 1x Front and right back Linkage Supply 1x Differential Fork 2x X-Ring Gaskets 1x Ring Gear Gasket 2x Bushings 1x 6.5x10x0.5mm Washer