ONE AXLE SET OF INTEGRAL 8,000LB MAXX COATING DISC BRAKES..INCLUDES MAXX INTEGRAL ROTOR/HUB w/9/16″ studs (RTR/HUB-131-8K-.56-MAXX),  CALIPER (CALP-7-8K-MAXX), AND BRACKET (DBB-8KA-MAXX)