Seals and Gaskets: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| 4 Speed - 4T65E | ||||
| Dipstick Tube Seal | 0.5 | 0.4 | C | |
| Extension Housing Gasket | 2.1 | 1.5 | B | |
| Front Seal | 6.8 | 4.6 | B | |
| NOTE | ||||
| To R&R Bushing, Add | 0.1 | 0.0 | B | |
| Manual Shaft Seal | 10.0 | 8.0 | B | |
| Oil Pan Gasket | 0.9 | 0.7 | C | |
| Side Cover Gasket | 3.5 | 2.5 | B | |
| Plate Gasket | ||||
| Channel Plate Gasket | 9.2 | 6.9 | B | |
| 4 Speed - 4T80E | ||||
| Case Cover Gasket | 10.9 | 7.4 | B | |
| Extension Housing Gasket | 3.0 | 2.3 | B | |
| Front Seal | 10.1 | 6.3 | B | |
| Manual Shaft Seal | 2.1 | 1.7 | B | |
| Oil Pan Gasket | 1.4 | 1.1 | C | |
| Side Cover Gasket | 10.1 | 6.9 | C | |
| Plate Gasket | ||||
| Channel Plate Gasket | 2.7 | 2.0 | B |