Traxxas 5153R Revo Inner Drive Cups with Pins (pair) Pair of inner drive cups for Revo / Maxx Fits steel constant-velocity driveshaft's Includes screw pin, M4/15(2) For use only with 5333R adjustable wheelbase rear suspension arms Use Traxxas stock and hop-up replacement parts to get the most out of you Traxxas RTR vehicles! This product is made from high quality materials, and designed for lasting performance. This is for use on RC vehicles such as the Traxxas Revo, consult your user's manual for exact parts listings.