This Ford GPW was built in late April/early May 1943, and was stamped with the date of delivery of May 6th, 1943. It has the chassis number of GPW109375, putting it in contract F-4. Since the GPW was imported from the USA in an untouched, unrestored state, it is most likely that it served on the US mainland during World War 2.  
Contract # Serial # Date of Delivery
F-1 1-15000 Feb 42 - Apr 42
F-2 15001-78146 Apr 42 - Nov 42
F-3 78147-101304 Nov 42 - Mar 43
F-4 101305-179758 Mar 43 - Jan 44
F-4 Ext 1 179759-226205 Jan 44 - Oct 44
F-4 Ext 2 225206-252741 Oct 44 - Feb 45
F5 252742-277878 Feb 45 - July 45

The vehicle was imported from Texas to the UK, late in 2011. It appears to have been left pretty much as it was when it died, I believe after being used as a farm hack. This is based on the brackets welded to the front bumper for dragging some piece of farm equipment around. Apart from the post war wheels and lack of seats, the vehicle was fairly intact, with many original 'f' marked fittings.
The engine bay was fairly complete, though at some point, either in service or post war, it was fitted with a 12 volt alternator rather than a generator/dynamo. The engine had been rebuilt at some point, possibly due to the reputation of the Ford blocks to crack. During the engine strip down, it was found to have oversized pistons fitted, one of which was fitted backwards.

 While it still has a Ford cylinder head, the block is a Willys unit, but not of wartime origin, but actually pre-war. This is based on the casting number and the serial number of 39-1722 stamped into the location where the usual six digit MB or GPW number is. I am guessing that 39- means the block is from 1939.

There are many Ford marked parts within the engine bay, ranging from the radiator and fuel filter to the dipstick!

The original glove box data plates were severely corroded, but the stamped numbers could still be seen and matched the plates to the numbers stamped on the chassis.

During its life after the war, rotting of the body set in, resulting in many tub repairs. All round the sides of the tub, the bottom three inches had rotted away and steel plate welded over, inside and out. The front floor had rotted out and a 1/8 steel plate welded over the top of the rotten material. A hump was built up from flat sheet to enclose the transmission.

The rear floor had received the same 1/8 steel sheet treatment, and in the process was welded to the chassis in places. Both rear wheel arches appear to have been cut out, I'm guessing for larger seats to give more leg room.

The fuel tank must have also rotted at some point, along with the tank well. A very heavy box tank replaced it, possibly made from the same 1/8 steel sheet as the floor.