Capricorn LAB C803 & 804 Front Differential Oneway Insert - Arrowmax AM-930003  [AM-930003]

Oneway unit with controlled drag for front diff

The Arrowmax AM-930003 is a drag assisted oneway developed for front differential installation on Capricorn LAB C803 and LAB C804 chassis. It is intended to alter rollback and engagement traits so builders can refine throttle transition and steering balance in scale on-road models.

Sold as a targeted upgrade for the stated Capricorn models, this part prioritises fitment accuracy over universal compatibility. It applies measured drag to the oneway mechanism, changing how the front wheels recover drive and influencing turn-in and mid-corner balance versus a standard oneway.

Installation and setup guidance

Fitting requires removal or access to the front differential and use of standard hobby tools. Make sure the unit seats securely in the housing and that output shaft clearances are as per factory guidance. Introduce handling changes gradually and run short trials to evaluate steering and traction response, swapping back to the stock unit if unpredictable behaviour appears.

To protect drivetrain longevity, match this oneway with suitable gears and bearings. Recheck gear mesh and bearing condition after installation, and monitor for unusual vibration, noise or heat that could signal incorrect alignment.

This Arrowmax component is for modellers seeking a specific front drivetrain response on Capricorn LAB C803 and C804 cars; assess its effect methodically and maintain routine checks after fitting.