C9, C10, C11, C12, C13, 3176, ; FLAT FLYWHEEL WITH 8 1/2" CENTER FOR 15 1/2" CLUTCH 113 TOOTH RING GEAR WITH 8 MOUNTING HOLES RING GEAR: 113 TEETH PILOT BEARING: TP836306 CLUTCH SIZE: 15 1/2" CENTER DIAMETER: 8 1/2" CORE #: 175 CORE PRICE: $250.00