Sixth generation (1960–1966)[edit]
The styling of the 1960 - 1961 model year took cues from the late 1950s Chevrolet cars and had large oval ports above the grille. Front independent suspension was new for 1960.[11] The cab featured a "wrap around" windshield. Both tailgate and panel doors rear openings were available. From 1962 onwards, the hood styling was more conservative, with hoods that eliminated the large ports. In 1964, the front glass area was updated to a flatter windshield, and larger door glass. 1,150 lb (520 kg) of cargo could be carried in the back.[12]
This model series introduced a factory-equipped 4WD ("K") option for the first time. The 2WD "C" models introduced a torsion bar-based independent front suspension and trailing arm and coil spring rear. But by 1963, returned to a more conventional coil-spring approach.
Engines included both I-6 and small-block V8s. A 305 cu in (5.0 L) GMC V6 engine was also available on GMC models. This 305 was actually from GMCs medium-duty truck line. It featured high torque, but was also notable for poor fuel economy. Transmissions were a 3-speed and 4-speed manual, and the automatic Powerglide.
A 15-passenger conversion was done by Stageway of Fort Smith, Ark. These modified Suburbans had three doors on the right, a 171 in (4,343 mm) wheelbase, were 273 in (6,934 mm) long, and weighed 6,300 lb (2,858 kg).[2]
One ton (C-30), 10-foot (3 m) panel truck models were no longer available after 1966.
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