First turned out in the fall of 1963, the GP35 replaced the GP30 in the EMD catalog, and introduced a new angular cab design that would be standard on La Grange diesels for decades. The GP35 had the 567D3A prime mover rated at 2,500hp, and would be the last new-build Geep powered by a 567 variant.
US railroads bought 1,251 GP35s, while 83 other locomotives were built for Canadian and Mexican roads. Virtually all GP35s were built with low short hoods, but the Southern, Norfolk & Western, and NdeM bought high-nose units.
EMD also offered a non-turbocharged version, the GP28, in 1964-66. Only 31 examples were built, and 15 of those were for export to Mexico and Peru. Illinois Central was the major domestic customer, buying a dozen engines. Although GP28 sales were poor, many standard GP35s were later de-turbocharged to save on maintenance costs.
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