I photographed these Chevy G506 Truck 1-1/2 Ton 4×4 at the Olympic Flight Museum and the Warhawk Air Museum in Nampa, Idaho. These were produced as the Chevrolet G7100 (and originally G4100) models during and after WWII
Very similar to the GMC CCKW Truck.
Chevy G506 Truck
Model G7106 is the Dump Truck without a winch