That illustration shows a comparison of component locations for both the differential steer version and the steering clutch and brake version of the D9R. Component layouts for the two systems are very similar except for the following items:
- Steering pump on the differential steer machine
- Four-section PTO pump on the clutch and brake machine compared to the three-section PTO pump and torque converter scavenge pump on the differential steer machine
- Differential steer planetaries are located in the transmission housing on the differential steer machine
- Steering motor for turning on the differential steer machine
- Clutch and brake packs on the clutch and brake machine compared to the service brake packs on the differential steer machine.