The Stovebolt Site Forums The Shop Area Engine Shop 1958 235 12v starter flywheel?

I searched Napa they show Fly wheel 153 teeth fly wheel. So is 168 teeth correct for 58 chevy 235? I had the starter from a 216 rebuilt to 12v . Will I have to change the gear on the start as well? If so what do I need to look for?. I appalagize I don't know the correct name for the gear on the starter. Thanks for your help.