Chevrolet Van-minivan

The Chevrolet and GMC G-Series vans were made by General Motors for North America. They are in the same vehicle class as the discontinued Ford E-Series and Dodge Ram Van. The G20 and its counterparts replaced the original Chevrolet Corvair Greenbrier Van which was manufactured until 1965. First fielded in the mid-1960s, the model line evolved until it was replaced in 1996 by the Chevrolet Express. 1964-70 G20s came with six-lug wheels (6 lugs - 5.5" (139.6 mm) bolt circle), while the 1971–1995 generation came with the 5 lug - 5" (127 mm) bolt circle.

The first General Motors van was the Chevrolet Corvair-based Chevrolet Greenbrier van, or Corvan introduced for 1961, which used a flat-6 opposed rear engine with air cooling, inspired by the Volkswagen bus. Production of the Chevrolet Greenbrier ended during the 1965 model year. The 1st generation ChevyVan refers to the first Chevrolet G-Series vans G-10 1⁄2 ton production years 1964 through 1966. The 1964 ChevyVan had a cab forward design with the engine was placed in a "doghouse" between and behind the front seats.

In 1967, ChevyVan received a major facelift, including moving the headlights down to a new redesigned grille, larger, rectangular tail lights and a curved windshield. The forward control cab design was retained, but the doghouse was lengthened, widened and slightly relocated in order to fit an optional Chevrolet Small-Block engine. In 1971, ChevyVan received a major redesign, moving the engine forward of the driver with a short nose and hood. The van was constructed of a unibody style frame and employed stronger truck style hubs and brakes with dual A-Arm independent front suspension.