| Chapter 40 | Heavy-Duty Clutches |
| Chapter 41 | Servicing Heavy-Duty Clutches |
| Chapter 42 | Basic Gearing Concepts |
| Chapter 43 | Standard Transmissions |
| Chapter 44 | Servicing Standard Transmissions |
| Chapter 45 | Automated Manual Transmissions |
| Chapter 46 | Torque Converters |
| Chapter 47 | Planetary Gear Concepts |
| Chapter 48 | Hydraulically Controlled Automatic Transmissions |
| Chapter 49 | Electronically Controlled Automatic Transmissions |
| Chapter 50 | Maintaining Automatic Transmissions |
| Chapter 51 | Heavy-Duty Drive Shaft Systems |
| Chapter 52 | Heavy-Duty Drive Axles |
| Chapter 53 | Servicing and Maintaining Drive Axles |
| Chapter 54 | Electric Drive Vehicles and AC Traction Motors |
| Chapter 55 | Autonomous Driving and Advanced Driver Assistance Systems for Commercial Vehicles |
| Chapter 56 | Hybrid Drive Systems and Series-Type Hybrid Drives |
| Chapter 57 | Allison EV Drive and Series-Parallel Hybrid Systems |