| Part | Manufacturer | OEM Part # | Price | Notes |
| 241, 243 |
| Case Assembly |
| Without THM 700R4 | GMO | 15733770 | 832.00 | Contact Dealer for most current part and price information. |
| With THM 700R4 | GMO | 24228422 | 1499.99 | |
| 1370, 4401 & 4470 |
| Case Assembly |
| Stamped KB | GMO | 15683856 | 3190.86 | |
| Model 241C |
| Manual Trans |
| Getrag Trans | GMO | 15016965 | 1915.00 | Contact Dealer for most current part and price information. |
| New Process Trans | GMO | 15024386 | 1915.00 | Contact Dealer for most current part and price information. |
| Auto Trans |
| 4L80E | GMO | 15045745 | 1237.72 | |
| 4L60E Electronic | GMO | 24228422 | 1499.99 | |
| Model 1370 |
| Stamped KJ | GMO | 15016964 | 1915.00 | Contact Dealer for most current part and price information. |
| Stamped KK | GMO | 15016965 | 1915.00 | Contact Dealer for most current part and price information. |
| Model 4470 | GMO | 15965654 | 1825.00 | |