This is Harley Fields’ other Bronco II, a far more extreme machine than the one he calls Eddie The Bronco II. While Eddie stays fairly true to the original build created by Pat Manning, this 1985 Bronco II—nicknamed “Hell Boy”—is Harley’s hardcore trail rig.
The name fits. Harley calls it Hell Boy because it’s large, red, and smashes everything in its way. Built to tackle serious terrain, this Bronco II has been heavily modified from bumper to bumper with one goal in mind: maximum off-road capability.
With one-ton axles, 42-inch tires, a stretched wheelbase, and a twin-sticked transfer case setup, Hell Boy is built for crawling, climbing, and surviving trails that would stop most vehicles cold.
Specifications
- 1985 Ford Bronco II
- 1986 5.0 HO V8 Engine
- Explorer Serpentine Belt Setup
- James Duff V8 Swap Radiator
- Broader Performance AOD Street/Strip Transmission
- 4R75W Internal Components
- Silver Fox Valve Body with OD Lockout Switch
- B&M Shifter
- NWF Fab Black Box Doubler
- NP205 Transfer Case
- NWF Triple Stick Shifters
Steering & Brakes
- PSC Power Steering Box (Tapped for Hydro Assist)
- High Pressure Saginaw Power Steering Pump
- Hydro Boost Brake Master Cylinder Setup
Axles & Gearing
- Front: 1992 Dana 60
- ARB Air Locker (Front)
- 5.13 Gears
- 35-Spline Yukon 4130 Axle Shafts
- Yukon Lockout Hubs
- Strong Joints
- Rear: 2001 Dana 60
- ARB Air Locker (Rear)
- 5.13 Gears
- 35-Spline Yukon Axle Shafts
- Rear Disc Brakes
- Chassis Unlimited Differential Cover
- Anti-Wrap Bar
Suspension
- Cage Offroad Extended Radius Arms
- Heim Joint Steering Linkages
- Fox 2.5 16-Inch Air Shocks (Front)
- Deaver Leaf Springs for Bronco II (from James Duff)
- Offset / U-Bolt Delete Spring Perches
- Wheelbase Stretched to Approximately 100 Inches
Wheels & Tires
- 42x15x16 Pitbull Rocker Tires
- DIY Beadlock Wheels
Body & Interior Modifications
Hell Boy has been heavily modified to make room for its drivetrain and suspension while still keeping the Bronco II body recognizable.
- 3-Inch Body Lift
- Rear Fender Wells Cut and Rebuilt for Tire Clearance
- 2×4 Steel Rock Sliders (Replacing Factory Rocker Panels)
- Procar Fabric Bucket Seats (Front)
- Corbeau 36-Inch Wide Rear Bench Seat
- Custom Dash Panel with AutoMeter Gauges
Air System
- ARB Air Compressor Mounted to Passenger Rear Fenderwell
- 5-Gallon Air Tank Mounted Beneath Rear Seat
Winch & Recovery
- 12,000 lb Harbor Freight Winch
- Custom Front Bumper Built by Harley Fields
- Relocated Winch Control Box to Driver Side Inner Fender
- Remote Winch Plug Mounted in the Grille (Replacing Ford Emblem)
A True Hardcore Bronco II
Compared to Harley’s other Bronco II, Eddie, Hell Boy represents the extreme end of the Bronco II spectrum. With its one-ton axles, massive tires, and highly modified suspension, it’s built to tackle serious rock crawling and brutal trails.
While Eddie carries on the legacy of Pat Manning’s original build, Hell Boy shows just how far the Bronco II platform can be pushed when the goal is pure off-road performance.
Both trucks prove the same thing though: the Bronco II is still very much alive on the trail.
Gallery
About The Author
Jim Oaks is a longtime Ford truck and SUV enthusiast and the founder of The Ranger Station and Bronco II Corral. With decades of hands-on experience, he writes both technical and non-technical articles covering the Ford Bronco II, including mechanical systems, factory engineering, common upgrades, and detailed feature vehicle write-ups.
In addition to technical content, Jim documents Bronco II history, rare factory and aftermarket models, production details, and original Ford marketing materials. His work is based on firsthand experience, original documentation, and long-term involvement in the Ford enthusiast community.
Through his sites, Jim has built comprehensive reference libraries that serve owners, builders, restorers, collectors, and historians, helping preserve the Bronco II’s technical knowledge and historical significance.