XRAY 364903 Large Volume Gear Diff for XB4  [XR-364903]

XRAY 364903 - Gear Differential - Large Volume - Set
Price:
NZD$131.03
Brand:
XRAY
Model:
XR-364903
Condition:
Brand New
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Balanced Gear Differential for Sharper Corner Entry

The XRAY 364903 Large Volume Gear Differential Set enhances XB4 handling by moving rotating components closer to the centreline with its split crown gear design. That shift improves balance and helps the chassis rotate more predictably during corner entry and mid-corner phases. Its expanded oil volume keeps diff behavior stable over multiple runs.

Graphite Composite Build for Longevity

Both the case and cover are injection moulded from XRAY's graphite composite, chosen for stability and low friction. The internal satellite gears run smoothly against the composite housing, delivering consistent, low-maintenance performance suited to racing demands.

Designed for XB4 2020 Spec Cars

Purpose-built for XB4 2020 Specs, this diff integrates cleanly into the stock layout. The redesigned diff-outdrives use a 2.5mm pin for a secure mechanical connection that suits common XB4 driveline setups.

Specifications

  • Material: Graphite Composite
  • Compatibility: XB4 2020 Specs
  • Pin Size: 2.5mm
  • Design: Split Crown Gear

If you want steadier diff action and a more consistent feel from lap to lap, the XRAY 364903 is a straightforward upgrade for serious XB4 drivers tuning their setup.
Remark :
Due to limited stock availability, please notice that some XRAY items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Can I use this diff with aftermarket driveshafts?

Yes, as long as the driveshafts match the XB4 2020 spec interface. The XRAY 364903 uses standard outdrive spacing and a 2.5mm pin size for secure fitment.

Should I change diff oil weight with this larger volume diff?

Changing oil weight is a tuning choice. The larger volume gives a steadier baseline, so you may be able to fine tune handling with slightly different oil viscosities without encountering abrupt changes.

Is the split crown gear serviceable?

Yes, the diff is serviceable using standard diff tools. Routine inspection of gears and seals will keep the unit performing reliably.

Does this affect drivetrain efficiency?

The graphite composite housing and refined satellite gears are aimed at low friction, so efficiency remains high while durability improves compared to some plastics.

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