VehiclesAxial UTB18 Capra 4WDUpgradesFront portal overdrive gears

Front portal overdrive gears

Axial UTB18 Capra 4WD · AXI01002

This changes the gearing inside the front portal hubs so the front wheels turn faster than the rear wheels. Choose it when you want front-biased crawling behavior while retaining the original rear gearing.

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Parts & installation

Manufacturer documented

Vehicle: Axial UTB18 Capra 4WDAXI01002
Position: front
Change: Fit the matched 25T/16T portal gear pairs to the front portal boxes

Parts needed

Two two-gear packs for both front portal boxes

Part	Qty
AXI312006Axial 48P Portal Gears, Overdrive 25T/16T: UTB18 (2)	2

Manufacturer-documented option for the specified vehicle configuration.

Installation notes

Fit one AXI312006 25T/16T gear pair in each front portal box. Two sold packs cover the front axle.
Retain the rear gearing to create the front-to-rear speed difference. Fitting the same ratio at both ends removes that difference.
The original portal pair is 26T/15T. Check gear mesh and smooth rotation after rebuilding both front boxes.

Sources

Axial 48P Portal Gears, Overdrive 25T/16T: UTB18 (2)

Product details, supplied components and stated application limits.