Well the ring gear spun on the flywheel. The old one was just resurfaced. Don't know if I would trust just reattaching another ring gear (I am having to pull the motor again which was just dropped in :( just to remove the flywheel. New ones are at least $300.00 for billet (with shipping). New stock one will have to be balanced $$ plus purchase cost. Used will be cost plus balance, plus resurfacing if it's ok to begin with. $300.00 is alot of money right now. I just figured that 4 small even spaced welds would be okay.