This is the Traxxas replacement #3631 Front Suspension Arms for for the Stampede 2WD and Rustler.
Made from black molded nylon for the Traxxas Stampede 2WD and Rustler.
Length: 3 1/4"
Width at end near chassis: 1 1/2"
Width at end near wheels: 7/8"
(2) Front suspension arms for the Traxxas Stampede.