WC-54
The WC-54 Truck, 3/4 ton, 4x4 Ambulance, Dodge (G502), was produced as an ambulance, but a few were modified to serve as radio/telephone trucks with the US Signal Corps.
A total of 26,002 WC-54 units were built from 1942 through 1944, after which the ambulance was redesigned, and replaced by the WC-64 in 1945.

Length: 16 ft 3 in / 4,95 m
Height: 7 ft 6 in / 2,30 m
Weight: 5,920 lb / 2 685 kg
Width: 6 ft 6 in / 1,98 m
Payload: 1,800 lb / 816 kg
WC-64
The WC-64 KD Truck, 3/4 ton, 4x4 Ambulance Dodge (G502) was an ambulance based on the same chassis as the WC-54 but with a knock-down body designed to increase the number of vehicles that could be shipped at the same time.
The rear boxes were supplied in two major parts: lower and upper.
The lower part of the box was attached to the chassis at the factory, while the upper box was crated for installation in the field.
3,500 Knock-down ambulances were built between the beginning of 1945 and the end of the war, the great majority (2,531 units) went to allies under lend-lease: 
1,123 to the free French forces
644 to Great Britain
475 to China
149 to Brazil and 82 to other Latin American republics
WC-54
The WC-54 Truck, 3/4 ton, 4x4 Ambulance, Dodge (G502), was produced as an ambulance, but a few were modified to serve as radio/telephone trucks with the US Signal Corps. A total of 26,002 WC-54 units were built from 1942 through 1944, after which the ambulance was redesigned, and replaced by the WC-64 in 1945.
Length: 16 ft 3 in / 4,95 m
Height: 7 ft 6 in / 2,30 m
Weight: 5,920 lb / 2 685 kg
Width: 6 ft 6 in / 1,98 m
Payload: 1,800 lb / 816 kg
WC-64
The WC-64 KD Truck, 3/4 ton, 4x4 Ambulance Dodge (G502) was an ambulance based on the same chassis as the WC-54 but with a knock-down body designed to increase the number of vehicles that could be shipped at the same time. The rear boxes were supplied in two major parts: lower and upper. The lower part of the box was attached to the chassis at the factory, while the upper box was crated for installation in the field. 3,500 Knock-down ambulances were built between the beginning of 1945 and the end of the war, the great majority (2,531 units) went to allies under lend-lease: 
1,123 to the free French forces
644 to Great Britain
475 to China
149 to Brazil and 82 to other Latin American republics
Dodge WC series