Bolt on Application: Atlas and ADVANCE ADAPTERS DANA 300 AND DANA20 HD output shaft transfer cases. INCLUDES FLANGE FOR 1310 OR 1350 CV. rotor, caliper, mounting plate, bracket and brace. Simplified flange style CV installation. Also has provision for vehicle Speed sensor (SHOWN, not included) see part number PB-12376520. Some fabrication skills are required for cable attachment.