B-Max4 Front Gear Box Replacement for Yokomo YOKBM302F  [YOKBM302F]

B-Max4 Front Gear Box Service Unit

This unit is a replacement front gear box assembly made for RC-scale use on the B-Max4 platform. It is supplied as a direct spare to service the front drivetrain and to replace a worn or damaged gearbox without altering the chassis.

Built as a like-for-like spare, the component is designated YOKBM302F and restores correct drivetrain geometry and mounting points on B-Max4 cars. It is intended as an RC accessory only and not for any real vehicle application.

Installation notes: follow your chassis manual to remove the front bulkhead or access plate, inspect or transfer internal gears and bearings where applicable, set gear mesh and axial alignment before final torqueing, and apply a light coat of appropriate grease to mating gears to reduce wear. Confirm servo linkages and drive shafts rotate freely after fitting and complete a cautious low-speed test.

Tuning role: replacing the front gear box is a standard maintenance task that helps maintain consistent steering feel and stable power transfer to the front end, and it provides access for gear mesh adjustments and bearing replacement during setup.