Experience cleaner drivetrain behaviour with the XRAY X4 Gear Differential Set, made specifically for the X4 platform. The kit includes a redesigned composite differential case and a cover with integrated pulley to preserve belt alignment. Precision-molded composite gears combined with lightweight aluminum hardcoated outdrives produce a lighter, smoother-running differential.
The differential case is pierced with small bleeding holes for M2.5x8mm screws, cutting the risk of screw stripping during assembly and giving excess oil a path to escape. An updated case profile keeps the rear belt centred, improving consistency and forward traction. The reliable sealing arrangement makes this a maintenance-free gear diff that reduces routine oil servicing and helps prevent leaks.
Suitable for both carpet and asphalt layouts, this differential sharpens on-power steering response, a key trait for competitive setups. It does not come pre-assembled, so careful build and setup are required to achieve consistent performance without frequent maintenance.
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