A "must have actually really" selection for XB4 & XB4 2WD, the ball-differential increases traction also it's worthy of low-traction songs.
The complete factory pre-assembled ball-differential features premium HUDY Spring metal diff outdrives and screw for outside modification, tough top gear moulded from supreme quality additional rigid and dependable self-developed graphite composite combination, superior bearings, top-quality carbide axial thrustbearing, heavy-duty diff washers and ceramic 2.4mm diff balls.