h. Medium Wrecker Truck, M62 and M543 Series. The M62 and M543 medium wrecker
trucks have a 179-inch wheelbase, 11:00 x 20 tires, and dual rear wheels. A hydraulic crane
and winch assembly are mounted on the rear of the chassis. The M62 and M543 models
differ only in design variations in wrecker crane equipment.
i. Expansible Van Truck, M291A1. The M291A1 expansible van trucks have a 215-inch
wheelbase. 11:00 x 20 tires, and dual rear wheels. The van body is equipped with windows.
j. Expansible Van Truck, M291A1D. These vehicles are similar to M291A1 except that a
power lift gate is mounted on the rear of the chassis.
k. Bridge Transporting Truck, M328A1. The M328A1 bridge transporting truck has a 215-inch
wheelbase, 14:00 x 20 tires, and dual rear wheels. It is designed specifically for transporting bridge
l. Bolster Truck, M748A1. The M748A1 bolster truck has a 215-inch wheelbase, 11:00
20 tires. and dual rear wheels. This vehicle tows a bolster trailer model P-14 equipped with
9:00 x 20 dual wheels. It is equipped with a midship winch used to position the trailer on and
off the truck chassis.
1-7. Detailed Description. If you need a detailed description of any component of the M39
truck series vehicles, ask your supervisor to see a copy of TM 9-2320-211-20.