Circle 246 opposite last page Is your maintenance department spending more than it should . ... last page CLASS III TRUCK requirements are answered with diesel trucks from Isu- zu Truck of America Inc. The firma#39;s NPR 11, 000 lbs. ... The diesel trucks feature five-speed synchronized manual transmission and dual circuit hydraulic brakes with vacuum assist. ... Isuzu Truck of America Inc. Circle 250 opposite last page ROTO JET offer performance flexibility and ease of maintenance.