The Traxxas 5354 Rocker Arm Stud (also called Rocker Arm Post) is a direct OEM replacement part used in the suspension rocker assemblies of various Traxxas 1/10 scale RC monster trucks like the Revo, E‑Revo, Slayer, and Summit. It provides a pivot support point for rocker arms that transfer motion between the shocks, pushrods, and suspension arms.