- Four key factors in drivetrain specifications are startability, gradeability, gearing and fuel economy. They are impacted by the engine, tire size, transmission and axle ratio.
- Choose the right components that fit the vocation and application from the start.
- Know the exact application and vocation of the vehicle and provide your OEMs with as much information as possible.
- Know the difference in specifying and using driver-controlled differential lock (DCDL) and automatic traction control (ATC), because a driver’s behind-the-wheel performance can extend drivetrain life through the proper use of the vehicle’s inter-axle differential lock, DCDL and ATC.
- Match tires on tandem wheel ends. If spec’ing single wide-base tires, check hub specification to avoid severe strain on the axle housing.
- When spec’ing components, pay attention to the weight. Lightweight components, such as aluminum carriers and lightweight drums, can take weight out of the drivetrain. Since the components are lightweight, it takes less energy to move the truck, resulting in improved fuel economy.
Source: Meritor
