aldot, the parts list shows the shafts with the gears in place, and the only part numbers are for the whole thing. For model 11 the horizontal steering shaft shows as part number GT962 and the vertical steering shaft shows as part number GT963. However you should check with Greenfield. Are you sure you need to replace them? If there are backlash issues, you should be sure you have replaced the nylon bushes before you condemn the gears as worn out. If the bushes are loose, the gears will not mesh properly.
