Flywheel Flywheel for South Bend Clutch 13 Inch Conversion Clutche 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: 13125-OK, 13125-OFEK, 13125-FEK