A "must have" choice for XB4 & XB4 2WD, the ball-differential increases traction and is suitable for low-traction tracks.
The complete factory pre-assembled ball-differential features premium HUDY Spring metal diff outdrives and screw for outside modification, tough top gear moulded from high grade extra stiff and dependable self-developed graphite composite mixture, high-performance bearings, top-notch carbide axial thrustbearing, heavy-duty diff washers and ceramic 2.4mm diff balls.
