|Reference: big rig etc|
Hi Tony, yeah, sorry, coming late to this so don't know if you've checked out this site or not which gives different types of trucks and trailers in the US (and other jargon)
Truck - Wikipedia, the free encyclopedia
With the meaning of self-propelled vehicle for carrying goods it has been ... In U.S. English, the word "truck" is often preceded by a word describing the ...
en.wikipedia.org/wiki/Truck - Cached - Similar
Either a tractor without a trailer, or a box truck. In verb form, this also refers to operating a truck without a trailer.
See box truck.
A straight truck or box truckBox truck
Main article: Box truck
A smaller, single-unit, non-articulated truck, usually having between 6 and 10 wheels. Often incorrectly called a 'bobtail.'
Main article: Cab over
A short, box-shaped tractor with no hood, and a steep vertical front. The "cab" rides "over" the engine and front steering axle. Used when a shorter wheelbase is needed.
A vehicle composed of two or more separate units, a tractor (powered unit, semi-truck) and a trailer (unpowered unit, semi-trailer).
Main article: Conventional truck
A tractor featuring a forward engine and a cab situated in front of the rear axle, with a convential hood configuration.
A truck cab without a sleeper berth.
This term is derived from the number of wheels that the typical OTR tractor-trailer configuration has. See also semi-truck.
Main article: Semi-trailer truck
An articulated (jointed) combination vehicle, commonly composed of a 10-wheeled tractor and an 8-wheeled trailer.
See box truck.
See semi-truck. ..
or this one has pictures as well
Heavy Duty Trucks USA - Trucks, Semi Trucks, Tractor Trailers, and ...Your source for used trucks for sale, heavy duty trucks, 18 wheelers, ... Welcome to Heavy Duty Trucks USA! This site is an informational resource center ...
www.heavydutytrucksusa.com/ - Cached - Similar
...A semi-trailer truck or tractor-trailer (colloquially known as a transfer truck, 18-wheeler, semi, Diesel, Mack truck (although this is actually just one brand of truck maker), or big rig in the U.S., and transport in Canada; as a semi in Australia or New Zealand; and as an articulated lorry (artic) in the UK and Ireland) is an articulated truck or lorry consisting of a towing engine (tractor in the U.S., prime mover in Australia, and truck in the UK, Canada and New Zealand), and a semi-trailer (plus possible additional trailers) that carries the freight. When you hear that a truck has a sleeper it means that the cabin has an extended space (usually mesaured in inches in length) where you can find a bed, table, TV, etc. Trucks without sleepers only contain a cabin with a driver's seat and passenger seat...