this isn't a situation of converting to 12V guys - what Jorge is saying is he put a later 12V solenoid actuated starter on a 6V 'flywheeled' engine, not the 6V foot stomp, so yes, a later ring gear is needed on the flywheel, or a complete later flywheel needs to be found - try a post in the parts wanted, Jorge, for a 56+ 235 flywheel
to pull the flywheel you'll have to drop the "bar" [torque tube style drive shaft] and pull the trans, which will be much easier than pulling the engine w/ the trans left behind
Bill
edit: you won't find a 6V solenoid actuated starter
