This GMC C/K 1973-1991 got away, but there are more like it here.

This 1975 GMC C1500 Sierra Classic pickup was sold new by Roy’s Service in Elkhorn, Wisconsin, and remained with one owner until the seller acquired it in 2020. The truck is powered by a 350ci V8 mated to a three-speed automatic transmission and a locking rear differential, and it is equipped with a Holiday Rambler bed canopy, 15″ Rally wheels, fog lights, running boards, a dual exhaust system, a CB radio, a trailer brake controller, and a Delco AM radio. Service under current ownership is said to have included refreshing the valvetrain, rebuilding the carburetor, and replacing the fuel tanks, tires, brake master cylinder, intake manifold gasket, valve cover gaskets, spark plugs, and battery. This Sierra Classic is now offered at no reserve with manufacturer’s literature, 1975 sales documentation, hats and other ephemera, and a Wyoming title in the seller’s company’s name.

No Reserve: 1975 GMC C1500 Sierra Classic

The truck was finished in Deluxe two-tone Catalina Blue and Frost White from the factory and features handpainted lettering, custom pinstriping, a windshield visor, and a Holiday Rambler canopy with vent windows, curtains, and woodgrain accents. Other elements include chrome bumpers, fog lights, front tow hooks, a replacement grille, a bug guard, towing mirrors, diamond-plate running boards, and a receiver hitch. Touched-up paint is noted on the door corners and the lower portion of the right-front fender, and close-up photos of corrosion and blemishes around the vehicle are provided in the gallery below.

No Reserve: 1975 GMC C1500 Sierra Classic

White-finished 15″ Rally wheels wear chrome trim rings and 235/75 Cooper Trendsetter SE thin-whitewall tires mounted under current ownership. Braking is provided by power-assisted front discs and rear drums, and the brake master cylinder was replaced in preparation for the sale.

No Reserve: 1975 GMC C1500 Sierra Classic

The bench seat is trimmed in blue vinyl upholstery beneath a multicolor saddle blanket, and woodgrain trim lines the door panels, dashboard, and instrument panel. Equipment includes a CB radio, a Trail-A-Matic trailer-stabilization control unit, a trailer brake controller, a heater, a Delco AM stereo, and all-weather floor mats. Commemorative hats and other items from previous ownership remain in the cab.

No Reserve: 1975 GMC C1500 Sierra Classic

The two-spoke steering wheel frames a 100-mph speedometer, a tachometer, and auxiliary gauges, while a voltmeter and temperature gauges for the transmission and engine oil are mounted below the dashboard. The five-digit mechanical odometer shows 39k miles.

No Reserve: 1975 GMC C1500 Sierra Classic

The 350ci Invader V8 was factory rated at 160 horsepower and 250 lb-ft of torque. The seller reports that work since 2020 included rebuilding the carburetor, cleaning and oiling valvetrain components, and replacing the fuel tanks, intake manifold gasket, valve cover gaskets, spark plugs, and battery.

No Reserve: 1975 GMC C1500 Sierra Classic

Power is sent to the rear wheels through a three-speed Turbo Hydramatic automatic transmission and a locking differential. The transmission is said to have been serviced and resealed under current ownership. Corrosion on underside components is shown in additional underbody photos in the gallery.

No Reserve: 1975 GMC C1500 Sierra Classic

The service parts identification tag shows equipment and options.

No Reserve: 1975 GMC C1500 Sierra Classic

Manufacturer’s literature and 1975 sales paperwork also accompany the truck.

Auction Result

Winning Bid USD $9,500 by Rsteeves
Auction Ended October 23, 2022 at 2:47PM PT
Bids 13
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BaT Essentials

Seller: 307WYO
Location: Cody, Wyoming 82414
Listing Details
  • Chassis: TCY145S509515
  • 39k Miles Shown, TMU
  • 350ci V8
  • Three-Speed Automatic Transmission
  • Locking Differential
  • Catalina Blue & Frost White Paint
  • Blue Vinyl Upholstery
  • 15" Rally Wheels
  • Trailer Hitch
  • Dual Fuel Tanks
  • CB Radio
  • Delco AM Radio
  • Manufacturer's Literature
  • 1975 Sales Documents
Private Party or Dealer: Private Party
Lot #88348