| Part | Manufacturer | OEM Part # | Price | Notes |
| 3 Speed (Muncie) |
| Main Drive Gear |
| 16 Teeth | GMO | 340621 | 242.00 | Contact Dealer for most current part and price information. |
| 19 Teeth | GMO | 3859030 | 242.00 | Contact Dealer for most current part and price information. |
| 4 Speed Hydromatic M20 |
| Main Gear |
| 1ST Design | GMO | 15588219 | 195.00 | Contact Dealer for most current part and price information. |
| 4 Speed New Process |
| Main Drive Gear | GMO | 14039072 | 302.95 | Contact Dealer for most current part and price information. Order By Size. |
| THM350 | GMO | 14024301 | 115.00 | Contact Dealer for most current part and price information. Order By Thickness. |