| Part | Manufacturer | OEM Part # | Price | Notes |
| 3T40 |
| Differential Carrier |
| 3.18 Ratio | GMO | 8661949 | 356.19 | Contact Dealer for most current part and price information. |
| 3.43 Ratio | GMO | 8661978 | 289.00 | Contact Dealer for most current part and price information. |
| 4T60 |
| Carrier Kit | GMO | 8662922 | 388.90 | Contact Dealer for most current part and price information. |
| 3.0L With 3.06R | GMO | 8661979 | 323.00 | Contact Dealer for most current part and price information. |
| 3.0L, 4.3L With 3.06R | GMO | 8661978 | 289.00 | Contact Dealer for most current part and price information. |