One of the tiny nylon gears on my drivers seat adjustment motors has broken making it so I can't move the back of my seat up and down. Fortunately I have it adjusted correctly, so it is not a huge inconvenience. However I would like to fix it. I called the dealer and they only offer the entire assembly including all three motors for a mere $800 +. Anybody have any experience with this and if so, does anyone know where I can get just the nylon gear or possibly just the motor assembly with the gear attached?