RPM Extended Left Rear A-Arms Black Summit/Revo FEATURES Composite plastic construction eliminates nearly all A-Arm slop allowing camber, caster and toe angle settings to be more solidly fixed in position Uses all stock geometry including options for either 10 or 19mm extension Replaces the Traxxas #5333R A-Arms INCLUDES Two Extended Left Rear A-Arms with Instructions COMMENTS Bumper Mount Spacers (not included) and M3 x 16mm screws (not included) may be necessary if installing these in place of standard wheelbase A-arms.