These are hardened steel drive yokes for the Traxxas Rustler and Stampede. FEATURES: Hardened steel construction and is stronger than stock parts. These yokes also come with U-Joints pre-installed for ease of installation. YOU WILL RECEIVE: Two hardened steel yokes with pre-installed U-Joints. REQUIREMENTS: Nothing, this part is a direct fit for stock drive yokes, only harder COMMENTS: This is a "hop-up" part, not stock. 8/13/97 snm &