Flywheel Flywheel for South Bend Clutch 13 Inch Conversion Clutch Kits 13" Heavy Duty Solid Mass Flywheel Does not fit Dodge (OEM) stock clutch. South Bend Solid Mass Flywheel, re-drilled and refaced to accept the larger South Bend clutch. Will not work with stock clutch - Not a stock flywheel replacement. Solid Mass Flywheel is superior to standard stock dual mass flywheels. Flywheel is compatible with South Bend Clutch Kits: 1947-O, 1947-OK, 1947-OFE, 1947-OFEK