Capricorn LAB C803 & 804 Front Oneway Drag Unit - Arrowmax AM-930003  [AM-930003]

Front diff oneway with adjustable drag

The Arrowmax AM-930003 is a drag assisted oneway intended for front differential use on Capricorn LAB C803 and LAB C804 chassis. It modifies rollback and engagement characteristics to alter on-throttle and off-throttle balance for improved control on scale on-road cars.

Marketed as a direct-fit upgrade for the named Capricorn models, this unit emphasises clear compatibility. By adding controlled drag to the oneway assembly, it changes how the front wheels hand back power and influences turn-in and mid-corner handling compared to the factory oneway.

Fitting and tuning recommendations

Installation requires access to the front differential and basic hobby tools. Verify the unit sits correctly in the differential housing and that shaft clearances meet factory tolerances. Evaluate handling changes with short test runs and adjust settings gradually; revert to the stock unit if behaviour becomes unpredictable.

To keep the drivetrain reliable, use matching gears and good-condition bearings. After fitting, confirm gear mesh and bearings, and monitor for unusual noise or excessive heat as indicators of misalignment.

This Arrowmax item is aimed at builders who want a specific front drivetrain feel on Capricorn LAB C803 and C804 chassis; test incrementally and inspect regularly after installation.