How to Change drive gears from 23 to 9 tooth
below is a link to the video on how to swap your 23 tooth gears to 9 tooth gears
Tools needed 2 7/16" wrenches, 9/16" wrench, 9/16" socket, 5/8" socket, flat tipped screw driver, 3/4" socket, snap ring pliers, Pully puller, allen head wrench set, and a rubber mallet.