
This 1973 Chevrolet C20 4×2 was retrofitted with an intercooled, 12-valve Cummins 5.9L turbodiesel inline-six and a 47RE four-speed automatic before it was acquired in 2022 by the seller. They report its driveline, suspension, brakes, electrical system, and fuel system were serviced during the swap. The truck is finished in orange over Highlander plaid upholstery, and it has a 4″ turbo-back exhaust, power steering, dual fuel tanks, Bilstein shocks, rear air springs, and a custom sound system with a RetroSound stereo. This Cummins-powered C20 is offered with a clean California title in the seller’s name.
Exterior details include Custom Deluxe and Camper Special badging, a solid rear window, and a receiver hitch with a wiring harness. Under current ownership, the driver’s door was repaired and refinished after its mirror was hit while the truck was parked.
The 16″ steel wheels have bright hubcaps, and they are mounted with 255/85 Toyo M-55 tires. Bilstein shocks, C30-spec front springs, and pneumatic rear helper springs are additional elements. Vacuum-assisted front disc brakes are paired with rear drums for stopping power.
The bench is trimmed in Highlander plaid sourced from SMS Auto Fabrics of Canby, Oregon, and the cab has a custom manual-look shifter in addition to a Bluetooth-capable RetroSound stereo linked with an amplifier, subwoofer, and mid-range speakers that were installed under current ownership.
The instrument cluster has an Isspro exhaust-gas temperature gauge, and a transmission temperature gauge is mounted below the dashboard. The five-digit odometer shows 92k miles, ~2k of which were added by the seller, who notes the air conditioning is not powerful, the oil pressure gauge reads high when normal, and the center seat belt needs to be replaced.
Said to have been sourced from a 1996 Ram 2500 with 120k miles, the 12-valve Cummins 5.9L turbodiesel inline-six was installed in 2020, per the seller, and it has a Bosch mechanical injector pump, an intercooler, electric cooling fans, and a 4″ stainless-steel turbo-back exhaust system.
Power is routed to the rear wheels through a 47RE four-speed automatic. An aftermarket transmission cooler and a custom driveshaft are noted by the seller, who adds that the rear end was re-geared during the powertrain swap.
The vehicle has not been inspected by the California Bureau of Automotive Repair or Air Resources Board.
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