Inboard Mount With Serrated Studs

Place the hub on a flat surface with the hub cap or drive flange end down. Place the brake drum or rotor on the hub, aligning the mounting holes. Make sure the drum or rotor pilot matches the hub pilot and that the brake drum or rotor is resting flat against the hub mounting face. There should be no interference between the brake drum or rotor pilot chamfer and the corner radius on the hub (see Figure If interference exists, contact the wheel end manufacturer.
Insert the serrated studs down through the brake drum or rotor and into the hub. You should use a press to insert the studs. If a press is not used, you may drive the studs into the hub by tapping them with a hammer until they are flush against the back plate of the brake drum or rotor. Proper seating may be verified by a feeler gauge under stud head (see TMC RP 656, Hub and Spoke Wheel Fastener Maintenance ). In any case, support the hub flange when inserting the studs to guard against excessive flange flexing.