1951 GMC 100 5-Window Pickup

The Advance-Design is a light and medium duty truck series by Chevrolet, their first major redesign after WWII. Its GMC counterpart was the GMC New Design. It was billed as a larger, stronger, and sleeker design in comparison to the earlier AK Series. First available on Saturday, June 28, 1947, these trucks were sold with various minor changes over the years until March 25, 1955, when the Task Force Series trucks replaced the Advance-Design model.

This 1951 GMC 100 is a five-window pickup finished in red and black over brown vinyl and underwent a mechanical and cosmetic refurbishment. The truck is powered by a 228ci inline-six paired with a three-speed manual transmission. Equipment includes chrome bumpers, running boards, a wooden bed floor, a 12-volt electrical system, and a PerTronix ignition conversion.

Steel 16″ wheels feature polished GMC hubcaps and are mounted with 6.50-series bias-ply Firestone Deluxe Champion tires. A matching-combination spare is mounted on the driver-side of the bed.

The cab features a brown vinyl bench seat, rubber floors, and body-color dash and door panels. Amenities include a cab heater and a locking glove compartment.

A three-spoke steering wheel frames an 80-mph speedometer and a combination gauge for fuel level, amperage, oil pressure, and coolant temperature.

In 1947, Chevrolet launched a major redesign of its pickup truck offerings, known as the Advance Design series. One of the most distinctive features of these trucks was the Deluxe Cab option, which included a pair of curved “Nu-Vue” corner windows at the back of the cab, increasing visibility and giving the truck an open feel. This remains a sought-after design today. Enthusiasts typically refer to it as the “5-window” Chevy.