TRAXXAS TRX4 Trail Crawler Aluminum Transmission Upper Spur Gear Case Cover by GPM TRX4038GCA  [TRX4038GCA]

Aluminum Transmission Upper Spur Gear Case Cover

This aluminum upper spur gear case cover is an RC-scale replacement part intended for the TRAXXAS TRX4 Trail Crawler platform. It provides a rigid protective layer over the transmission area to reduce direct impacts to the motor and main (spur) gear and to limit ingress of dust and debris during trail runs.

Fitment focuses on maintaining alignment of the gearbox opening while using the original mounting points and hardware. The included stainless steel round head screws (3pcs) support secure fastening; final torque should be modest to avoid stripping receivers or plastic mating surfaces.

Use this cover when you want a durable, metal alternative to stock plastic covers for improved longevity on rocky or dusty trails. Check clearance around adjacent suspension and body mounts before final installation to ensure no interference with standard TRX4 components.

This cover is a practical aftermarket option for TRX4 owners seeking a metal upgrade for the transmission area; verify fit and fastener torque during installation to protect the gearbox and motor alignment.