A replacement made of aluminum for the Traxxas plastic outer portal housing for the TRX-4. Replaces the Traxxas part TRX8251.
Anodize in matte black.
Combined with the aluminum rear inner portal hsouings and aluminum rear portal mounts you only add 20g extra to each side of the rear axle compared to using the Traxxas plastic parts, but gain a lot of extra durability.
Contains 2 outer portal housings.