The sixth generation of the Ford F-Series, often called the “Dentside,” began its reign in 1973. While the F-100 focused on the masses, the 1973 Ford F-250 4×4 cemented itself as the uncompromising workhorse of the lineup. This three-quarter-ton truck was designed for buyers who needed genuine capability, with a Gross Vehicle Weight rating spanning from 6,200 pounds to over 8,100 pounds. Consequently, it set a new standard for heavy-duty performance that enthusiasts still appreciate today.
The Mechanical Legacy of the “Highboy”
Perhaps the most famous aspect of the 1973 F-250 4×4 is its enthusiast-given nickname: the Highboy. This distinctive moniker refers to its notably taller stance when compared to the two-wheel-drive model. This elevation was a direct result of its unique four-wheel-drive system architecture. The transfer case was mounted separately from the transmission, known as a divorced setup. This mechanical necessity required a higher ride height and a narrower frame, giving the Highboy its legendary, commanding posture. It looks ready for anything.
Engineering for Uncompromising Utility
Unlike the two-wheel-drive F-250, which featured the Twin I-Beam independent front suspension, the 4×4 model retained a solid front axle. This more rugged design provided the durability and articulation needed for serious off-road use and heavy hauling. The robust Dana axles used in the Highboy contributed greatly to its legendary reputation for strength. Furthermore, the truck was available with the optional Camper Special package, designed specifically for accommodating heavy slide-in campers. This package included mechanical upgrades to improve stability and load handling.
Shared Dentside Style and Comfort
Despite its heavy-duty core, the 1973 F-250 benefited from the F-Series’ generational updates. The exterior showcased the Dentside styling, characterized by a smooth, full-length crease running along the body side. Its cab was completely redesigned to maximize driver and passenger comfort. For instance, the new cab was the largest Ford had offered, providing generous hip and shoulder room. This spacious design greatly improved the experience of long hours behind the wheel.
Interior and Safety Innovations
Ford also focused on safety and practicality inside the cab. They relocated the fuel tank from the interior to a protected position outside the cab. This created a useful storage area behind the bench seat for valuables or small tools. Trim levels ranged from the basic Custom to the more luxurious Ranger and Ranger XLT packages. These packages added features like color-keyed interiors and better sound insulation, showing Ford’s commitment to a more refined truck experience.
Power, Engine Specs, and Performance
The 1973 Ford F-250 4×4 was equipped with engines geared for brute strength and towing. The standard work engine was the reliable 300 cubic inch inline-six, which delivered ample low-end torque. However, many buyers opted for the available V8 engines. These included the 360 cubic inch V8 and the powerful 390 cubic inch V8. The 360 V8 was factory rated at approximately 143 net horsepower and around 280 lb-ft of torque. The formidable 390 V8 delivered up to 168 net horsepower and a strong 314 lb-ft of torque. These figures ensured that the F-250 could easily manage its heavy GVW rating and conquer challenging terrain. Most 4×4 models were paired with a stout four-speed manual transmission, though the three-speed automatic was also a popular option.
An Icon of Capability and Ruggedness
The 1973 Ford F-250 4×4, the original Highboy, remains a cherished piece of automotive history. It successfully merged the sixth generation’s modern cab design with the raw, overbuilt durability of earlier Ford trucks. This unique combination of comfort, powerful engine options, and uncompromising four-wheel-drive engineering created a pickup that was utterly dependable for work and became an enduring symbol of American off-road ruggedness.
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Source: Ford Heritage Vault
