Hi everyone. Im hoping I can get some advice on what I should do. I have a EXL-46-B. Im hoping to remove the QCGB and replace 3 gears. First, I want to ask if there are any sticking points or steps during the removal of the QCGB I should know about? I do see a roll pin on the bottom of the box near the bolt heads. Also, once I remove the gear box, I need to change out 3 gears inside. Are there any stumbling blocks to that process I should know about? Im sorry I don't know what those gears are called, but they are the 2 largest gears furthest to the right side when facing the gear box. Also directly underneath those 2 larger gears is another gear that is on the shaft that connects to the lead screw. I would like to replace those 3 gears. Does anyone know where I might be able to purchase those gears? Any advice you can offer me is so much appreciated. Thank you so much.