3Racing SAK-D6825/BU Gear Drive Bulkhead for Auper D6 chassis, blue gear drive bulkhead  [SAK-D6825/BU]

Gear drive bulkhead for Auper D6

This gear drive bulkhead from 3Racing is a direct replacement-style part for the Auper D6 platform. It serves as the mounting point and housing interface for the gear drive section of the gearbox, keeping gearset alignment stable under load and during setup changes.

The design role is straightforward: provide a rigid anchor for spur and pinion alignment and preserve axle and bearing positions that affect backlash and mesh. When replacing a worn or damaged bulkhead, confirm fastener positions and pre-fit any bearings or spacers before final assembly to avoid binding.

Installation notes: remove existing gearbox fasteners in sequence, transfer any bearings or shims from the original bulkhead, then secure the bulkhead while checking gear mesh under rotation. Tighten screws progressively and recheck drivetrain rotation to ensure smooth operation without excessive endplay.

This bulkhead is intended for hobby-scale RC use on the Auper D6 chassis, offering a service replacement option to restore gearbox alignment and support tuning of geartrain clearance.