Application: 8,000-lb Dexter axles, Rockwell American axles, or any other brand axle with 3-3/8″ brakes.
Works with both electric and hydraulic brakes
Drum dimensions: 12-1/4″ diameter x 3-3/8″ wide
Bolt pattern: 8 on 6-1/2″
Pilot hole diameter: 4-3/4″
5/8″ studs
oil bath lubrication
Races are pressed into hub.