The world of custom trucks rarely sees a build as ambitious as the 1966 Chevrolet Custom Dually Pickup known as the Ponderosa. Fabricated by the specialists at Rtech Fabrications, this machine is a seamless blend of mid-century aesthetics and heavy-duty modern capability. It gained national fame after appearing on Jay Leno’s Garage, where its incredible scale and engineering were put on full display. The crew cab body was painstakingly created using multiple 1964-1966 donor shells to ensure a factory-correct appearance. This truck effectively reclaims the title of the ultimate long-haul cruiser for any enthusiast. It successfully merges vintage charm with the relentless power of a 12-valve diesel.
Engineering the Ponderosa Cummins Drivetrain
At the center of this 1966 Chevrolet Custom Dually Pickup lies a legendary 1996 5.9L 12-valve Cummins 6BT inline-6 engine. This powerplant has been extensively modified with Mahle pistons and a ported cylinder head for maximum durability. A BD Diesel manifold and turbocharger work together to provide immense boost across the entire power band. Furthermore, the inclusion of Dynomite Diesel stage 3 injectors ensures that the fuel delivery matches the aggressive air intake. An NP205 transfer case manages the massive torque, sending power through a heavy-duty automatic transmission system. This drivetrain is engineered to handle massive loads without breaking a sweat.
Chassis Upgrades and Off Road Hardware
Supporting the immense weight and power of this conversion required a total rethink of the original 1960s chassis design. The 1966 Chevrolet Custom Dually Pickup utilizes a Dana 60 front axle and a Dana 70 rear axle with 4.10 gears. A Detroit locker in the rear ensures that traction remains constant even on loose or uneven surfaces. The suspension features Bilstein 5100 shocks and Skyjacker leaf springs to provide a stable yet comfortable ride quality. Massive 37-inch Nitto Trail Grappler tires are mounted on 20-inch American Force wheels for an imposing stance. Custom-lift traction bars prevent axle wrap during high-torque acceleration events on the road.
Lucent Light Green Style and Rtech Interior
The exterior finish of this 1966 Chevrolet Custom Dually Pickup is a striking Lucent GM Light Green with a White roof. This color choice pays homage to the era while looking perfectly fresh on a modern custom dually build. Inside, the cabin features green vinyl and cloth upholstery sourced from SMS Auto Fabrics in a period-correct pattern. A custom Rtech center console houses modern controls while maintaining the vintage vibe of the original dashboard. Dakota Digital gauges provide the driver with precise information through an interface that looks like original equipment. Air conditioning and Bluetooth connectivity make this an ideal choice for modern cross-country travel.
Power Engine Specs and Performance Metrics
The 1966 Chevrolet Custom Dually Pickup is powered by a 5.9L Cummins turbo diesel engine producing 550 HP. This mechanical setup generates an incredible 1,300 lb-ft of torque, allowing it to out-pull almost any standard vintage vehicle. Performance is enhanced by a ported and polished head and a competition-grade camshaft for better airflow. A three-core Champion radiator and dual electric fans keep the cooling system efficient under heavy stress. Braking is handled by front discs with drilled and slotted rotors for improved heat dissipation during towing. These specifications confirm the truck is a functional beast rather than just a show-only piece.
Summary of the Rtech Ponderosa Build
The 1966 Chevrolet Custom Dually Pickup stands as a masterclass in custom metal fabrication and diesel engineering. By combining the best body lines of the sixties with a bulletproof Cummins powertrain, Rtech created a unique icon. Every component, from the 60-gallon fuel tank to the 12,000 lb Warn winch, was chosen for maximum utility. The truck offers a level of presence that few other customs can match on the auction block. It is a rare opportunity to own a television-featured vehicle that is as capable as it is beautiful. This dually is ready to work or win trophies at any level.
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Source: mecum.com
