what does hd stand for on chevy trucks
Chevrolet C/K The C/K was Chevrolet and GMC's full -size pickup truck line from 1960 until 2000 in the United States, from 1965 to 1999 in Canada, from 1964 to 2001 in Brazil, and from 1975 to 1982 in Chile. The first Chevrolet pickup truck was introduced in 1924, though in-house designs did not appear until 1930. "C" indicated two-wheel drive and "K" indicated four-wheel drive. The aging C/K light-duty pickup truck was replaced with the Chevrolet Silverado and GMC Sierra names in 1999 in the United States and Canada, and 2001 in Brazil; the Chevrolet Silverado HD and GMC Sierra HD heavy-duty pickup trucks followed. Until this time, the names Silverado and Sierra were used to identify the trim level of the C/K trucks.
Chevrolet Silverado For the first year, only the regular cab and an extended cab were available, along with the Vortec 4300 V6, Vortec 4800 V8, and the Vortec 5300 V8. In 2000, a driver's side door option became available for the extended cab, giving it four doors, and the crew-cab body was added to the lineup. Output on the 5.3 L engine also increased to 285 hp (213 kW) and 325 lb⋅ft (441 N⋅m).