Transforming a Ranger into a High-Performance $350,000 Prerunner

October 21, 2024
Black Ford Ranger prerunner truck modified for off-road use with large tires, reinforced front bumper, and a roof light bar, parked on a dirt road with desert vegetation in the background, RJ Fabrication logo and text visible.

The story of the prerunner featured begins with an unexpected gift. During a simple dinner with his brother-in-law, Rob was handed the keys to an old Ranger truck, essentially for free. This seemingly mundane vehicle became the foundation for a high-performance prerunner, transcending its humble origins. The initial plan was not to create something so radical, but as with many projects, ambition grew, and the build evolved over four and a half years, fueled by countless nights and weekends of dedicated work.

The vehicle is far from its original state, retaining only portions of the cab and a section of the frame. The construction transformed it into a formidable off-road machine, equipped with a big block Chevy engine. Contrary to the assumptions of many in the current generation, who might mistake it for an LS engine, it is a Mark IV iron old-school big block, reminiscent of the powertrains found in classic 70s muscle cars. This setup has proven remarkably potent, achieving impressive figures on both engine and chassis dynos.

A black off-road prerunner truck driving fast on a dirt path in a desert landscape, kicking up dust and surrounded by sparse vegetation.
Two men inside a vehicle equipped with a roll cage and racing harnesses are sitting in their seats while another man stands outside the driver's side window talking to them. The interior includes branded harnesses, a headset, and control panels.

Engineering and Design

Two men in sunglasses are looking inside a vehicle with visible racing-style seats and a roll cage. A steering wheel and dashboard are partially visible.
A garage with a vehicle frame missing the front bodywork revealing the engine bay, a large engine is mounted on the frame, KC lights mounted on top of the windshield, suspension components visible, likely a Prerunner under construction or modification.

Chassis and Suspension

The prerunner has been meticulously designed and fabricated, with Rob and his team taking charge of the entire process. Every component, from the chassis to the suspension, is custom-built. The truck features Fox shocks and has extensive travel capabilities, with 20 inches in the front and 28 inches in the rear. This is the first hardcore off-road truck Rob has built, a testament to the thorough research and dedication that went into ensuring its success. The vehicle weighs a hefty 6,200 pounds, yet its performance and speed are notable, thanks to the robust design.

Suspension system of a prerunner truck with coil springs, shock absorbers, and a visible wheel.

Luxury Meets Utility

Beyond its rugged exterior, the prerunner offers a touch of luxury. It features custom-built headers and a high-grade exhaust system. The addition of a titanium color coating enhances its off-road appeal. The vehicle’s axles are designed for durability, crafted from 300M material and able to withstand significant stress. The pragmatism extends to its braking system, with Wilwood six-piston calipers and sizable 14-inch rotors ensuring reliable stopping power.

Interior and Comfort

Inside, the prerunner is thoughtfully constructed with both safety and aesthetics in mind. It boasts a proper roll cage, which was intricately fitted by removing and reattaching the roof during the build. The interior is outfitted with Corbeau Baja XP seats, custom upholstered to display Rob’s logos. The dashboard is aluminum and covered to add a refined touch, with a snap-in carpet system for easy maintenance. Lizard Skin lining provides sound and heat insulation, significantly enhancing comfort during long rides.

Two men wearing headsets and sunglasses are sitting inside a prerunner vehicle. The man on the left is in the passenger seat wearing a harness and jacket, while the man on the right is driving. The interior features a roll cage, and the landscape outside shows desert terrain.
Close-up view of the interior of a vehicle featuring a metal gear shifter and a control panel with multiple buttons, commonly found in custom or performance vehicles like a prerunner.

Technological Advancements

Modern Electronics

A black truck with the front hood and grille removed, revealing a custom suspension and partially exposed engine, next to another vehicle in a garage setting.

The prerunner is equipped with advanced technology, including a Racepak system for monitoring various vehicle parameters. A smart wire PDM (Power Distribution Module) is used for efficient power management. An iPad serves as an interface for accessing engine information and other critical data, highlighting the seamless integration of tech in the vehicle’s design.

Innovation in Transmission

Two men interacting with the interior of a vehicle, one inside operating controls on the dashboard, the other leaning in from outside. The vehicle is a modified prerunner with visible bucket seats, a steering wheel, and a control panel.

In terms of transmission, the prerunner incorporates a drag shifter, offering a sequential shift feel that is both responsive and intuitive. This choice was inspired by observing similar setups in high-performance vehicles and demonstrates the thoughtful consideration given to every aspect of the build.

Safety Considerations and Roadworthiness

A desert area with a black prerunner truck and a white police SUV parked on the sand, a person standing near the prerunner, and desert hills with houses in the background under a cloudy sky.

Building a prerunner involves not just performance but also adhering to safety and regulatory standards. The prerunner in question holds the distinction of being street legal, a rarity among such vehicles. This legality enables it to navigate both off-road trails and public roads, offering versatility that is appealing to enthusiasts.

Two men wearing sunglasses are standing in front of a modified truck with multiple KC lights. The truck is equipped with a prominent front grille and designed for off-road use, typically associated with a prerunner. The setting appears to be a residential driveway.

Moreover, significant focus has been placed on ensuring that the vehicle can handle the rigors of off-road conditions without compromising safety. From the robust cage construction to the advanced braking system, every component is scrutinized to ensure reliable performance.

The transformation of a basic Ranger truck into a high-performance prerunner is a testament to innovation, skill, and an unyielding passion for off-road engineering. The prerunner successfully balances luxury, utility, and cutting-edge technology, redefining what is possible in vehicle customization. As these builds continue to evolve, they offer a glimpse into the future of off-road adventures, where performance and comfort coexist seamlessly.

For enthusiasts considering such a project, the journey from a vision to a fully-realized prerunner involves significant investment, both in terms of time and resources. With a price tag of $350,000 for a build like Rob’s, it requires a deep commitment and appreciation for the craft. However, the end result is not just a vehicle, but a testament to engineering prowess and the relentless pursuit of automotive perfection.

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