The Chevrolet Series AD Universal was a car made only during the 1930 model year. It was the successor to the International Series AC.

The vehicle was introduced in January 1930 and was available with ten different bodies styles. The car had the six-cylinder inline engine (OHV) of its predecessor. The engine with a capacity of 3.179cc developed an output of 46bhp (34 kW) at 2,600rpm. The engine power was transmitted via a single dry clutch and a manual three-speed gearbox to the rear wheels. For the first time all four wheels were fitted with mechanical drum brakes.

The price of the Universal varied but was between $495 and $685 depending on the model. After only 10 months of production 864,243 cars were made.