The G506 was a United States Army Ordnance Corps supply catalog designation for the 1+1⁄2-ton, 4X4, truck chassis built in large numbers by the Chevrolet Motor Division of GM.

[4] During World War II, the US military purchased a total of 167,373 four by four 11⁄2-ton trucks, and Chevrolet supplied the great majority of them.

[1] However, some 47,700 of the G7107 and G7117 model trucks were shipped to the Soviet Union as part of the Lend-Lease program.

[9] The Soviet Red Army's logistics/transport capabilities improved dramatically in the spring and summer of 1943 largely as a result of the steady supply of American-made trucks (such as Studebaker US6s and the Chevrolet G506s) for the USSR.

[11][12][13] The G506 had a ladder frame with two live beam axles on semi-elliptic leaf springs.