4.6L V8 Fitment: Mustang GTs with a 2V or 3V 4.6L V8 came from the factory with 6-bolt crankshafts, and this flywheel will not fit vehicles utilizing the factory internals. The flywheel will only fit 2V or 3V 4.6L Mustangs with aftermarket 8-bolt crankshafts.