Traxxas left and right gearbox halves includes, one left and one right gearbox half. Gearbox halves are constructed of tough black nylon.
Comments: These do not include the hardware for assembly. Refer to manual for appropriate screws.
All the internal gears and shafts and assembly.
I like the black way better than the stock gray. Perfect replacement. Everything goes right back in. Just add grease. Good to run