<P> 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 . </P>
<P> 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 . </P>
what does hd stand for on chevy trucks
what does hd stand for on chevy trucks
heavy - duty
heavy - duty