TAMIYA BBX BB-01 7075-T6 Aluminum Transmission Housing BBX038 by GPM  [BBX038]

7075-T6 transmission housing for BBX BB-01

This aftermarket transmission housing is made for the TAMIYA 1/10 BBX BB-01 chassis and supplied as an upgrade part, model BBX038. The CNC-machined 7075-T6 aluminum shell reduces internal clearance to keep the spur and pinion running with less lateral play and firmer engagement under load.

The housing is finished to tighten gear location inside the gearbox, which improves drivetrain response and gives more consistent steering feel during cornering. It is intended for RC hobby use only and not for road vehicle applications.

Fitment follows standard BB-01 service steps: remove the stock housing, transfer bearings and internals as required, install the replacement housing in the transmission area, then secure with the original fasteners. After installation, verify gear mesh and endplay and make small adjustments before full reassembly.

For BB-01 owners who want reduced gearbox slop and steadier gear engagement, this 7075-T6 aluminium housing offers a strong, long lasting replacement that helps keep gear alignment stable during RC running.