1977 GMC C10 Sierra Classic

This 1977 GMC Sierra Classic C10 is a well-preserved, regular cab 2WD pickup with a heavy-duty suspension, power steering, power brakes, a tow receiver, and additional utility equipment. The big-block 454ci V8 has been upgraded with a chrome-finished air cleaner, an engine oil cooler, and an MSD ignition system, leveraging a Turbo Hydramatic 3-speed automatic transmission to send power to the rear wheels. Finished in factory two-tone Lite Blue and White over a blue cloth interior, this C10 is now offered with an owner’s manual, and a clear Arizona title in the seller’s name.

The GMC Sierra was part of the General Motors C/K Series of pickups and received a third-generation body style beginning in model year 1973. Dimensions were increased both inside and out at the time, and in 1977, the front fascia went through a revision with larger segments of the grille. This half-ton, longbed, fleetside example from that year was repainted two-tone Lite Blue (20) and White under prior ownership with finishes that are reported to remain in good condition. Brightwork is corrosion-free for the bumpers with guards, side moldings, sideview mirrors, and badging. Equipment includes cab lights, window visors, a cargo area lamp, and a step rear bumper. A sliding rear window looks out onto the cargo bed which is lined in a rubber mat, and the bed caps are topped in diamond plate aluminum. The seller has provided detailed imaging showing specific cosmetic wear areas, including some bubbling in the rear quarters.

Body-color steel 15” Rally wheels with polished rings are mounted to Toyo A/T Open Country raised-white-letter tires. Handling is assisted by power steering and power-operated disc brakes. According to the Service Parts Identification sticker, this pickup came with a heavy-duty chassis and a front stabilizer bar.

The Silverado-equipped interior is fitted with the original blue cloth bench seat, color-matched to the door panels, dash, and carpeting. Amenities include a ComforTilt steering wheel, woodgrain overlay trim, air conditioning, vinyl map pockets, cruise control, Soft Ray tinted glass, a Kenwood AM/FM/cassette radio, and an under-dash trailer brake control system.

Instrumentation includes a 100-mph speedometer, a 5k-rpm tachometer, and accompanying gauges for fuel level, coolant temperature, oil pressure, and voltage. The five-digit mechanical odometer reads 50,701 miles, although true mileage on the chassis is unknown.

The big-block 454ci V8 was rated at 240 horsepower and 370 lb-ft of torque, featuring a chrome-finished air cleaner, an engine oil cooler, an upgraded MSD ignition system, and an auxiliary fuel tank. Power is sent to the rear wheels via a 3-speed Turbo Hydramatic automatic transmission.

Photos showing the underside are available in the carousel.

The sale includes an owner’s manual. The seller has provided a walkaround video.