Chevrolet C/K

C/K is a series of trucks that were manufactured by General Motors. Marketed under the Chevrolet and GMC brands, the C/K series included a wide range of vehicles. While most commonly associated with pickup trucks, the model line also included chassis-cab trucks and medium-duty trucks and served as the basis for GM full-size SUVs. Used for both the model branding and the internal model code, "C" denoted two-wheel drive; "K" denoted four-wheel drive.

Introduced for the 1960 model year, four generations of the model line were produced, with GMC rebranding full-size pickups under a singular GMC Sierra nameplate for 1988. GM marketed the C/K in South America in Brazil, Chile, and Argentina.

After 1989, medium-duty trucks exited the C/K series, replaced by the Chevrolet Kodiak/GMC TopKick. For 1999, the Chevrolet Silverado (marketed by GMC as the Sierra) replaced the model line, with production of C/K pickup trucks ending after the 2000 model year. Drawing its nameplate from the top-level C/K trim, the Silverado consolidated Chevrolet pickup trucks under a singular nameplate (following GMC). The final C/K vehicles were heavy-duty chassis cabs sold through the 2002 model year.