I'm hoping there's a few experts out there. It's a great lawn mower that I've had for years. The drive pully finally let go so I was forced to replace the pulley and the belt. The clutch mounting bolt would not come out. Once I used a puller to remove the clutch assembly from the crank shaft I found out why. There was a little snap ring that prevents the bolt coming out of the clutch. I need a replacement bolt; can someone point me in the right direction? Thanks