TRAXXAS TRX4 Trail Crawler Lower Spur Gear Guard Aluminum TRX4038GCB by GPM  [TRX4038GCB]

Lower spur gear case plate in aluminum

This aftermarket lower spur gear case plate is a scale-style replacement built for the TRAXXAS TRX4 Trail Crawler chassis. Its function is to guard the motor compartment and primary spur gear against impacts and dirt while keeping service access straightforward.

Fabricated from aluminum 6061 T6, the panel provides higher strength than standard plastic covers and creates a more rigid enclosure at the gearbox opening. The package is a 7 pcs kit and includes stainless steel round head screws for installation, detailed below. Multiple colour options are available for personalising a TRX4 build.

Fitment and setup notes:

• Replaces the OEM lower spur gear case cover so you retain original gearbox geometry while improving enclosure durability.
• The alloy plate helps limit the entry of grit and small stones near the spur gear and motor, reducing abrasive wear on the gear interface when crawling.
• Because the part is rigid, verify clearance around the motor, pinion and any aftermarket ESC or cabling before final tightening to prevent binding.

This GPM aluminum lower spur gear case plate offers TRX4 owners a simple metal upgrade to improve protection while preserving serviceability.