Traxxas 3752 rear stub axle carriers are a direct OEM replacement for Electric Traxxas Rustler, 2WD Stampede and Stampede-Based vehicles, and 2WD Slash and Slash-based vehicles. Each axle carrier requires two 5x11x4mm bearings or bushings (not included) Use Traxxas stock and hop-up replacement parts to get the most out of your Traxxas RTR vehicles. This product is made from high quality materials and designed for long-lasting performance. This is replacement hardware for use on Traxxas vehicles; consult your user's manual for exact parts listings.