This is our new brake disc and hub assembly for the dual piston caliper. This hub pinches tight to the axle; locking the disc and keyway in place without the need for a snap ring or set screw. Little more than 70 inch pounds of torque is needed on the hub pinch bolt.
The key slot of the hub is undersized 6-10 thousandths to comply with the variances in O.D. of different rear axles. By sanding the provided keyway you can get a perfect snug fit.