Ultra Lock System

Traxxas Revo 2.5/3.3 Brushless T-Maxx SWING DRIVE AXLE SHAFT CVD  STEEL 

STEEL UNIVERSAL SWING SHAFT WITH WASHER AND WHEEL HUBS for TRAXXAS 1/10 REVO 3.3 (5308,5309), E-REVO( 5603,5605,5608), E-MAXX( 4907,4909)

These item can only be used on the Traxxas trucks with new style knuckles, which has 12x18x4 inner and 8x12x3 outer bearings.

These are the current bearings used in T-Maxx 3.3, Revo 3.3 extended chassis and E-maxx brushless.