Tremec T-56 C5 Corvette Transmission Cases
Call for details on different parts varying on model of vehicle. 1-800-227-1523
© 1992 – 2025 Rockland Standard Gear; Inc. All Trademarks are owned by their respective companies.


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Transmission Case 1 |
Transmission Case 2 |
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| Index Number | Description Part | Index Number | Description Part | |
| 1 | Reverse Synchronizer Spring | 1 | 5th/6th Lever Guide Bolt | |
| 2 | Reverse Synchronizer Sleeve | 2 | Interlock Guide Bolt | |
| 3 | Reverse Synchronizer Hub | 3 | Comptuer Aided Gear Select Solenoid | |
| 4 | Reverse Synchronizer Key | 4 | Oil Fill Plug | |
| 5 | Reverse Synchronizer Spring | 5 | Countershaft Bearing Race | |
| 6 | Reverse Synchronizer Key Retainer | 6 | 2nd Gear Synchronizer Blocking Ring | |
| 7 | Vent | 7 | 1st/2nd Synchronizer Assembly | |
| 8 | Vent Pip | 8 | 1st/2nd Synchronizer Spring | |
| 9 | Offset Lever Roll Pin | 9 | 1st/2nd Synchronizer Key | |
| 10 | Offset Shift Lever | 10 | 1st/2nd Synchronizer Hub | |
| 11 | Top Shift Shaft Bushing | 11 | 1st/2nd Synchronizer Sleeve | |
| 12 | Transmission Case | 12 | 1st/2nd Synchronizer Spring | |
| 13 | 6th Speed Drive Gear Bearing Spacer | 13 | 1st Gear Synchronizer Blocking Ring | |
| 14 | 6th Speed Drive Gear | 14 | 1st Speed Drive Gear Friction Cone | |
| 15 | 6th Speed Drive Gear Needle Bearing | 15 | 1st Speed Drive Gear Inner Cone | |
| 16 | Reverse Shift Fork Pad | 16 | Synchronizer Retainer Ring | |
| 17 | 6th Speed Drive Gear Thrust Washer | 17 | 1st Speed Drive Gear Bearing Spacer | |
| 18 | 6th Speed Drive Gear Inner Cone | 18 | 1st Speed Drive Gear Needle Bearing | |
| 19 | 6th Speed Drive Gear Friction Cone | 19 | 1st Speed Drive Gear | |
| 20 | 6th Speed Drive Gear Synchronizer Blocking Pin | 20 | Mainshaft Rear Bearing | |
| 21 | 6th Speed Drive Gear Bearing Spacer | 21 | Mainshaft Rear Bearing Race | |
| 22 | Synchronizer Retainer Ring | 22 | Backup Lamp Switch | |
| 23 | Reverse Shift Fork | 23 | Magnet | |
| 24 | Reverse Shift Fork Retainer Ring | 24 | Shift Detent Switch | |
| 25 | Guide Plate | 25 | Case Rear Extension Pin | |
| 26 | Guide Plate Bolt | |||
| 27 | Shift Detent Ball | |||
| 28 | Shift Detent Ball Spring | |||
| 29 | 5th/6th Speed Driven Gear | |||
| 30 | Reverse Synchronizer Hub & Sleeve | |||
| 31 | Reverse Gear Thrust Washer | |||
| 32 | Reverse Synchronizer Retainer Ring | |||
| 33 | Reverse Synchronizer Blocking Ring | |||


