This is an optional Samix Traxxas TRX-4 Brass Rear Portal Drive Housing in Black.
Features:
Brass rear hub carrier adds 65g of unsprung weight to the rear axle
Provides better center of gravity and helps improve rear traction and stability compared to the factory parts
Compatible with Traxxas parts
Black hard coating with chamfered edge to add a touch of bling to your truck
Made of high quality brass and etched with L and R for ease of installation
