Traxxas 5122X 4 mm Blue Aluminum Extended T-Maxx Chassis Era_1940-1960s sealed differentials tied to a

sealed differentials tied to a unique CUSH drive technology

Plate B Box Car

and versatility

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Traxxas 5122X 4 mm Blue Aluminum Extended T-Maxx Chassis Era_1940-1960s sealed differentials tied to aTraxxas 5122X 4 mm Blue Aluminum Extended T Maxx Chassis The replacement 4 mm aluminum T Maxx extended wheelbase chassis is formed from durable 6061 T6 aluminum and then anodized in beautiful blue. Besides forming a rigid backbone for the rest of the truck, the aluminum acts like a heat sink to draw additional heat away from the engine.