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SKU: XRA304901

XRAY X4 Gear Differential Set. This replacement differential set is intended for the rear of the XRAY X4. The differential gears are precision made from a tough composite material. Hard coated aluminum outdrives help to create a super smooth gear differential. When built correctly, this differential will last for a very long time and require very little maintenance.

The differential case has been designed specifically for the X4 platform to allow a more centered position and increase forward traction. This case features small bleeding holes for the 2.5x8mm screws to minimize the chance of stripping the diff case when tightening down the screws. The bleeding holes also allow excess oil to drain out.

NOTE: Differential fluid not included but required.


  • (1) Unassembled differential