| Part | Manufacturer | OEM Part # | Price | Notes |
| Fluid Pan Gasket |
| THM 400-475 (3L80-3L80HD) |
| Gasket | GMO | 8655625 | 9.84 | Contact Dealer for most current part and price information. |
| THM 700-R4 (4L60-4L60E) |
| Gasket | GMO | 8654799 | 9.42 | Contact Dealer for most current part and price information. |
| Extension Housing Seal |
| THM 400-475 (3L80-3L80HD) |
| Oil Seal | GMO | 8655031 | 8.48 | |
| THM 700-R4 (4L60-4L60E) |
| Seal | GMO | 8673526 | 8.55 | Order Number & Color |
| Extension Housing Gasket |
| THM 400-475 (3L80-3L80HD) |
| Gasket | GMO | 8624709 | 8.48 | |
| Oil Pump Seal |
| THM 700-R4 (4L60-4L60E) |
| Seal | GMO | 8648394 | 8.48 | |
| Governor Cover Gasket |
| THM 400-475 (3L80-3L80HD) | GMO | 8670381 | 4.32 | |
| Torque Converter Seal |
| THM 400-475 (3L80-3L80HD) |
| Oil Seal | GMO | 24210605 | 7.93 | |
| THM 700-R4 (4L60-4L60E) |
| Seal | GMO | 8648394 | 8.48 | |