It all started in Europe but the greatest production of the Quad 4x4 Field Artillery Tractor (FAT) took place in Canada using either a Ford V-8 or a Chevrolet V-6. These vehicles were designed to transport artillery, their crews and ammunition over just about any type of terrain. Because the 25-pounder was very mobile with a good rate of fire it became the standard for British Army artillery divisions during WW II and Korea. The limber is used to carry 32 rounds of ammunition, firing platform and other equipment that couldn’t fit into the Quad.