 Midway through the 1971 model year, Turbo HydraMatic transmission was made standard equipment on all full-sized station wagons, including Townsmans; this eliminated the need for customers to have to specifically specify an automatic transmission that virtually every wagon that had been built since the late 1960s was getting anyway.For 1973, Chevrolet eliminated the Townsman and upper-level Kingswood/Kingswood Estate designations for its full-sized station wagons.The Bel Air nameplate continued to be applied to all full-sized wagons through 1975 in the United States, and 1981 in Canada.