This is a set of replacement bearings for RPM #81732 Oversized Axle Carriers for the Traxxas X-Maxx. These bearings are not replacement bearings for stock Traxxas Axle Carriers (#7752).
Tech Notes: RPM replacement bearings are 20 x 32 x 7mm in size and only fit RPM #81732 Oversized Axle Carriers. Not compatible with stock Traxxas axle carriers.