Fit the XRAY X4 Gear Differential Set to your X4 platform for a more consistent drivetrain. The set supplies an updated composite differential case and a matching cover with pulley for correct belt positioning. Precision-moulded composite gears and aluminium hardcoated outdrives combine to produce a lighter, smoother differential assembly.
The differential case is drilled with small bleeding holes for M2.5x8mm screws, helping to prevent screw damage during fitting and allowing excess oil to escape. The revised geometry centres the rear belt to improve repeatability and forward traction. Thanks to its sealed layout, this gear diff requires minimal ongoing maintenance and resists leakage.
Well suited for both carpet and asphalt surfaces, this differential sharpens on-power steering, which is useful for lap consistency. It ships unassembled, so correct construction and setup are required to gain the full performance advantages without frequent servicing.
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