The T170, T270, and T370 series represents a robust offering in the medium-duty commercial truck segment, designed for a wide array of vocational applications. Available for the 2008 model year and later, these trucks are engineered with renowned durability and driver-focused comfort, providing a versatile platform for businesses. Notable features include a chassis flexibility that accommodates diverse body styles, powerful PACCAR diesel engines compliant with 2007 EPA standards, and the availability of a hybrid powertrain option for enhanced efficiency and reduced emissions. These trucks are built to handle demanding commercial use, offering a reliable foundation for various industries.

This Body Builders Manual provides comprehensive guidance for upfitting and modifying T170, T270, and T370 models. It covers essential areas such as chassis and frame specifications, detailed procedures for body mounting, and electrical interface guidelines for seamless integration of auxiliary systems. The manual also addresses Power Take-Off (PTO) and auxiliary equipment installation, considerations for exhaust and cooling systems, fuel system access, and air and brake system routing. Specific attention is given to hybrid system interfaces, including high-voltage safety precautions. This resource is invaluable for body builders, technicians, and owners seeking to ensure proper and safe customization of their medium-duty trucks.