This includes new and used for sale listings of Long-Haul Sleeper Highway trucks, Heavy Spec trucks, Day Cab trucks used to pull various styles of trailers. Lowbed Heavy Haul trucks, On & Off-road Planetary Prime Mover trucks are used by specialized transportation companies. Logging trucks used in combination with a logging trailer; Wet kit tractors used to pull various trailers that require hydraulic power. Shunt trucks shuffle trailers in and out of shops or loading docks.