Traxxas TRX-4 Outer Portal Drive Housing — Heavy Duty Brass Upgrade - JR-TRX406-HD by Jazrider  [JR-TRX406-HD]

Traxxas TRX-4 Brass Heavy Duty Front/Rear Outer Portal Drive Housing
Price:
USD$16.26
Brand:
JAZRIDER
Model:
JR-TRX406-HD
Condition:
Brand New
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Aftermarket Brass Portal Housing Overview

The JR-TRX406-HD front/rear outer portal drive housing is supplied as a brass replacement for use on Traxxas TRX-4 models. It serves as the external housing for portal axle assemblies and is designed to replace the OEM outer portal housings on compatible TRX-4 scale and trail crawler projects.

Constructed in brass for added stiffness and a metal finish, the housing gives a tougher outer shell than many stock plastic units. As a scale upgrade the part affects the portal assembly mounting and is often fitted to both front and rear hubs for improved durability and appearance.

Fitting notes: remove the existing outer portal housings and fit this brass unit to the portal gear assembly on the TRX-4 chassis. Confirm thread engagement, check clearance around brake and suspension link mountings, and verify gear mesh after assembly to avoid premature wear.

Specifications

  • Item Front/Rear Outer Portal Drive Housing
  • Material Brass
  • Model Number JR-TRX406-HD
  • Compatibility Traxxas TRX-4

This brass outer portal housing is intended for builders wanting a metal replacement for stock housings; always confirm fitment with your TRX-4 portal components and inspect clearances during installation.

What measurements should I check before buying?

Compare the bolt pattern, bore diameter, and overall housing profile between your existing TRX-4 portal assembly and the replacement to confirm compatibility.

Does the brass housing require different maintenance?

Regularly inspect mating surfaces and fasteners, keep the area free of grit, and monitor bearing wear; metal housings can expose adjacent components to different loading patterns.

Is additional reinforcement needed when using brass housings?

Most builds do not need extra reinforcement, but check surrounding mounts and links for wear and consider upgrading fasteners to avoid loosening under extended trail use.

Will this change gear alignment procedures?

Set gear mesh after installation and perform a manual spin check; metal housings can alter tolerances, so careful adjustment is recommended to prevent premature gear wear.