JAZRIDER JR-TRX406-HD Brass Heavy Duty Front and Rear Portal Drive Housing for Traxxas TRX-4  [JR-TRX406-HD]

Lower the Center of Gravity with JAZRIDER JR-TRX406-HD Brass Portal Housing

RC hobbyists wanting a practical upgrade for their Traxxas TRX-4 can fit the JAZRIDER Brass Heavy Duty Front/Rear Outer Portal Drive Housing JR-TRX406-HD. The added brass mass sits low on the axles to help the crawler track better over rough terrain and keep wheel contact where it counts.

Stability from Added Mass

Using solid brass in the outer portal housing increases weight on the front and rear axles. That extra low-end ballast helps the model resist tipping and improves grip when climbing or crawling technical sections.

Fitment and Simple Swap

This part is made to match the Traxxas TRX-4 Scale and Trail Crawler fitments. Installation is a direct replacement that does not require cutting or modification, so you can upgrade quickly with basic tools.

Built to Last on Trails

Machined brass delivers reliable durability and steady performance on repeated off-road runs. The heavy duty design holds up to regular trail use while giving predictable handling improvements.