Dennis D Tomahawk , WI May 11, 2019 Appliance: Model KITCHEN AID 5QT. MIXER One of the gears in the transmission had 4-5 teeth missing, it would skip when trying to use it I ordered the parts and took it apart. Cleaned out old grease. Put in new grease, put back together, all done very easy Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes