I have a 4MG 3406B with a brakesaver. Stock flywheel is 8.5" bore. I want to put in a 10" bore flywheel for better clutch options. Haven't been able to find a flywheel with a 10" bore for a brakesaver engine. The brakesaver engine does not have the ring gear on the flywheel. Thank you for any information or ideas on this, thank you.