Synchronizer Ring: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| 4 Speed, Hydramatic (M20) | ||||
| 1-2 Synchronizer | 5.5 | 3.9 | B | Includes: R&R Transmission. |
| Note | ||||
| With Skid Plate, Add | 0.5 | 0.3 | B | |
| 2ND Synchronizer Cone | 5.5 | 3.9 | B | Includes: R&R Transmission. |
| Note | ||||
| With Skid Plate, Add | 0.5 | 0.3 | B | |
| 3-4 Synchronizer | 5.5 | 3.9 | B | Includes: R&R Transmission. |
| Note | ||||
| With Skid Plate, Add | 0.5 | 0.3 | B | |
| 3RD Synchronizer Cone | 5.5 | 3.9 | B | Includes: R&R Transmission. |
| Note | ||||
| With Skid Plate, Add | 0.5 | 0.3 | B |