Chevrolet also offered the NAPCO 4WD 1-ton trucks from 57-59 with a 3500 pound axle rating...
Mike B
Correct Mike! I had to go pull my 'Truck Data Books" to see for myself. GM did make 4WD 1 tons till 1959, then from 1960-1976 did not produce any line-built/factory 4WD 1 tons, they all were up-fitted after factory delivery.
