[LeadU2Fun]

When we purchased the planetary gearbox it came with the proper gear. It is a heck of a time to get the old one off, however. Some people are using nut breakers. We used one of the dremel multi-max tools. It oscillates back and forth a fine amount to cut through the gear evenly. Before you hit the shaft you have to use something to wedge it, hit it, and break it. After that, some type of a press is needed to put the new one on. Make sure you support the shaft on the bottom or the motor innards will push out the back.