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Article: Engines, transmissions and axle ratios define a truck.(STREET SMARTS)
- Article from:
- Diesel Progress North American Edition
- Article date:
- January 1, 2008
- Author:
CopyrightCOPYRIGHT 2008 Diesel & Gas Turbine Publications. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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A truck is a truck is a truck--or is it?. In the case of Class 7 and 8 trucks, what a truck is depends more than anything on the configuration of the engine, transmission and axles. Class 7 trucks are, for the most part, heavy two-axle straight vehicles, usually powered by midrange diesels in the 8 to 10 L range. Typical applications are conventional chassis school buses, and many two-axle straight jobs such as beverage trucks, public utility line trucks, farm vehicles and common carder pickup and delivery vehicles. They typically have hydraulic brakes except for tractors, which use air brakes.
Depending on the make of engine, the vehicle application, number of ...