small-block V8s. Chevrolet used its 265 V8 engine, later evolving it to a 283-cubic-inch version. GMC based their V8 on a Pontiac design. Standard Suburban model numbers continued from the previous series, but the introduction of four-wheel-drive models in 1957 added the numbers "3156" for 4WD Suburbans with panel doors, and "3166" for 4WD Suburbans with tailgates. The "Suburban" name was also used on GM's fancy 2-door GMC 100 series pickup trucks from 1955 to 1959, called the Suburban Pickup, which was similar to the Chevrolet Cameo Carrier, but it was dropped at the same time as Chevy's Cameo in March 1958 when GM released the new all-steel "Fleetside" bed option replacing the Cameo / Suburban Pickup fiberglass bedsides. The Suburban name was never used again on a 1/2 ton pickup after the discontinuance of the Suburban Pickup. Although not documented due to a fire that destroyed the records, the production of Suburban Pickups is understood to be 300 or fewer each model year it was offered from 1955 to 1958. Fifth generation (1960) The styling of the 1960 – 1961 model year took cues from the late 1950s Chevrolet vehicles and had large oval ports above the grille. Front independent suspension was new for 1960. The cab featured a "wrap around" windshield, while tailgate and panel door 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. of cargo could be carried in the back. 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. Engine options included I-6 and small-block V8s. A 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, the automatic Powerglide, and the dual-range Hydramatic in the GMC models. A 15-passenger conversion was done by Stageway of Fort Smith, Ark. These modified Suburbans had three doors on the right, a wheelbase, were long, and weighed . One ton (C-30), panel truck models were no longer available after 1966. Chevrolet Veraneio