The wheel bearings will not fit on the axles. Did a lot of sanding on both axles using #80 and #150 Emery Cloth that took the better part of the day. Finally all the parts fit together. Made 6 13/32" spacers (U-408) from 3/8x0.058 6061 T6 tubing. The U-403 Brake Mounting Flange is fastened to the axle by 5/16-20 x 1 1/2 allen head screw, 1/4-20 self locking nut, 2 AN960-516 washers and 1 AN 960-416 washer. The two AN960-516 washers had to be ground on one side to clear the brake flange. Install the AN822 brake line elbow.