930 MID HUB CV KIT, 4 PISTON CALIPERS – 930 RACE PREPPED CVS, COMPLETELY ASSEMBLED, ALL HARDWARE & HUB PLATES – BLACK ANODIZE FINISH.(ALSO KNOWN AS 930 Centerboards and 930 Midboards) Drilled & Lock Wired CV Bolts. We machine all of our hubs and Calipers from Solid Billet 6061 Aluminum & use 14 mm Studs in all of our Hubs. (USA Certified T6511 Billet 6061) HIGH Strength CNC Machined Bearing Carriers and High Strenth Steel Boot Flanges. 4 Piston Billet Calipers, CONTINUOUS FLOW, Universal with Hawk Racing Pads and 303 Stainless, Polished Pistons. Billet Lightweight 6.25″ Race Dust Cap for quick and easy Tire Changing. Our kits come fully assembled, bearing greased, exact Torque & complete with all Hardware.