| Year | 2017 |
| Date | 17-Feb |
| Volume | 218 |
| Issue | 4,554 |
| Page | 322 |
| Category | Automotive |
| Part | 6 |
| Title | The Epicycle Gear Train |
| Author | Ron Wright |
| Notes | Explains the theory and mechanics of transmission. Hydraulic system, valves, hydraulic operation, selector lever positions, speed and load sensitivity, kick down |