Heavy duty trucks, those being 2500 and 3500 were still cable driven from 1999-2002 and 2003 was DBW.

If you want to get really technical they still used cable throttle bodies all the way to 2005 in the heavy duty vans. The express and savana vans stayed cable for much longer and those computers had special IAC drivers on the circuit board. Lots of people will actually switch back to cable if there drive by wire truck had a computer with the drivers built into the computer board.