Upgrade, blue anodised aluminium pivot ball retainer caps, machined from 6061-T6 aluminium, for Traxxas T-Maxx, E-Maxx, Revo 3.3, Slayer-Pro, E-Revo, E-Revo VXL and 2.0 and Summit. These hold the pivot balls in the axle carriers and front steering hubs and can be tightened and loosened to increase or decrease movement of the hubs.
