The Dodge WC series, sometimes nicknamed 'Beeps', was a range of light  military trucks produced by Dodge during World War II.  The series  included weapon carriers, telephone installation trucks, ambulances,  reconnaissance vehicles, mobile workshops and command cars.
WC was a Dodge model code: W for 1941 and C for half-ton rating. The C code was retained for the ¾ ton and 1½ ton 6×6 Dodges.
The Dodge WC series were essentially built in two generations.
From  1940 to early 1942, almost 82,400 of the ½-ton 4×4 Dodge trucks were  built — initially called the VC series, but the great majority (from  1941) in the WC series, and in more variants. Contrary to what the  nomenclature would suggest the 1941 WC models were a direct evolution of  the 1940 VC models, retaining the US Army’s G-505 Ordnance Corps Supply  Catalogue number.
The Dodge G-502 ¾-ton 4×4 trucks were first introduced in late  1941. Standard vehicles were the WC-51 / WC-52 Weapons Carrier and  Telephone Installation Trucks, WC-53 Carryall, and WC-54 Ambulance. In  the cargo trucks, the WC51 was identical to the WC52 but did not have  the front bumper-mounted winch.
The WC55 4x4 Gun Motor Carriage Dodge (G502) was a modified WC52 mounting a M3A1 37mm anti-tank gun and shield on its cargo bed. The WC55 and gun combination was designated M6 Fargo Gun Motor Carriage (GMC). 5,380 were built, most of them were later dismantled and returned to service as WC52 cargo trucks as the pre-war 37mm gun was unable to penetrate the armour of the later German Panzers.