Kit; 7-1/4" X 3" PD Patented Spline Drive X 1/4" Thickness; For 87; X00 Series Brake

Braking System, Air/Pneumatic; Brake; Pneumatic Activation; Straight | Finished Bore; 7/8" Bore; Shaft Bore Input; Shaft Output; C-Face | Shaft Mount; Maximum Static Torque 540In-Lbs; Friction Disc; Starting; Air | Spring; AIR CHAMP; MBU; Cylindrical Thru; 143TC | 145T; 1/8" Port; 1800RPM Max Speed; 80PSI Pressure; 0.23HP Thermal Capacity