WC-39, WC-43, WC-50
These models were built as technical service trucks for the U.S. Army Signal Corps, designed to install and repair hard telephone lines.
Together with some earlier 1/2-ton GMC/Chevrolet models, and the later ​³⁄₄-ton WC-59 and WC-61, they were also known by the Signal Corps as the K-50 trucks.

Of the two-wheel drive WC-39 and WC-50, only a single unit of each were built, but the four-wheel drive WC-43 numbered 370 pieces.
WC-39, WC-43, WC-50
These models were built as technical service trucks for the U.S. Army Signal Corps, designed to install and repair hard telephone lines. Together with some earlier 1/2-ton GMC/Chevrolet models, and the later ​³⁄₄-ton WC-59 and WC-61, they were also known by the Signal Corps as the K-50 trucks.
Of the two-wheel drive WC-39 and WC-50, only a single unit of each were built, but the four-wheel drive WC-43 numbered 370 pieces.
Dodge WC series