Midwest Super Cub Transmission Gear Sets for Cub Trans axle. Super Micro Finish for less drag. Three gears in a set. Cluster slider and two bottom gears. Tooth count on top cluster gear and corresponding bottom gears add up to 52. We have over 300 gear sets in stock for immediate shipping. These USA gears work with a stock top shaft. Use a gear set with 13 in it to allow for use of reverse.