You know the voltage starter you have by the number of teeth on the flywheel. Scott sounds like the starter could be going bad.

http://devestechnet.com/Home/Flywheel


Deve

1950 Chevy 3100 Deluxe Cab
1950 Chevy 3100 Standard Cab
In the Stovebolt Gallery
The Think Tank
More info and tips at Deve's Technet