Traxxas TRX-4 Brass Portal Housing JR-TRX406-HD by JAZRIDER - Heavy Duty Front/Rear  [JR-TRX406-HD]

Add Ballast Low on the Axles with JAZRIDER JR-TRX406-HD

If you want crisper control on rough trails, the JAZRIDER Brass Heavy Duty Front/Rear Outer Portal Drive Housing JR-TRX406-HD is a useful upgrade for the Traxxas TRX-4. The brass housings add concentrated mass low on the vehicle to help the tyres bite on uneven ground.

Better Traction from Lower Weight Bias

The brass construction shifts weight down to the axle ends, improving front and rear traction during steep climbs or descents. That added ballast helps the chassis maintain contact with the surface under load.

Designed for Direct Replacement

Specifically made for the Traxxas TRX-4 Scale and Trail Crawler family, these housings swap in without trimming or custom work. Standard tools are all you need for a clean fit.

Robust Construction for Frequent Use

Brass offers a combination of weight and wear resistance that suits regular trail running. The heavy duty design withstands knocks and delivers predictable handling over many sessions.