7/8” Wide HYVO gears are built solely for use on the jackshaft. Use the narrower 3/4”-Wide HYVO on the bottom. .780” Wide
11 Wide, 7/8″-13 Spline Upper Gear
13 Wide, 25mm-15 Spline Upper Gear
15 Wide, 1″-15 Spline Upper Gear
11 Wide, 1″-15 Spline Upper Gear