narrow gauge market, the GT22CU now carried a CU suffix which indicated that this model had six axles (C) and traction motors that could fit from one meter to gauge tracks (U). Another new suffix introduced to this model was the T, which indicated the use of a turbocharger. The GT22CU was purchased by the Ferrocarriles Argentinos from June 1972 to January 1980. GT22CW-2 The EMD GT22CW-2 was first appeared in 1988 and now carried a CW suffix which indicated that this model had six axles (C) and traction motors that could fit from Standard Gauge rails to gauge tracks (W). Another new suffix introduced to this model was the T, which indicated the use of a turbocharger. Finally, this model now carried the popular EMD Dash 2 electronics which improved its reliability. The GT22CW-2 found most of its popularity in Argentina and even after the breakup of Ferrocarriles Argentinos, did the successors of that company continued to purchase more GT22CW-2s. Production spanned from March 1988 to December 1997. GT22HW-2 The GT22HW-2 was a departure from the standard production of the GT22 Series as it was a custom model designed to meet the conditions of Yugoslavia. This multipurpose locomotive was introduced with a turbocharger (T), Head End Power (H) for passenger use and EMD Dash 2 Electronics (-2), with an A1A-A1A axle arrangement. Due to the locomotive's compact appearance, the length was shortened by from a normal GT22CW-2. Thirty four of these locomotives were manufactured by Đuro Đaković between February 1981 and August 1984. Since Yugoslavia had various languages arising from the ethnicities in the country, the locomotives were given four different lettering variations: GT22CUM First introduced in January 1982, the GT22CUM series were locomotives were a powerful single-engined locomotive with light weight per-axle. Designed exclusively for the RFFSA by Equipmentos Villares S.A., the GT22CUM now carried a CU suffix which indicated that this model had six axles (C) and traction motors that could fit from one meter to gauge tracks (U). Two custom designations were introduced for this locomotive: M for meter gauge () and -1/-2 to indicate a Type 1 or Type 2 model. The Type 1 Model is distinguished by not including an air reservoir on both sides of the carbody. The Type 2 Model is distinguished by an extended nose and an air reservoir on both sides of the carbody. Production spanned from January 1982 to