1978 Ford Bronco Parts

1978 Ford Bronco Parts Guide

The start of the full-size Bronco—built on proven F-Series truck platforms.

The 1978 Ford Bronco marked a major shift from the compact Early Broncos to a full-size platform based on the Ford F-Series trucks. With a longer wheelbase, larger body, and heavier-duty components, the 1978 Bronco introduced a completely different parts ecosystem. While it shares much of its design with the F-150, there are still Bronco-specific differences that need to be considered when sourcing parts.

Things to Know When Shopping for a 1978 Bronco

The 1978 Bronco is the first year of the second-generation Bronco, and it is very different from the 1966-77 models. Nearly every major system—frame, suspension, drivetrain, and body—was redesigned to match the full-size truck platform.

Because of this, most parts are not interchangeable with Early Broncos. Instead, many components align more closely with 1978 F-150 trucks, though there are still important Bronco-specific differences, especially in body panels and interior components.

What Changed in 1978

• Full-size platform: The Bronco moved to a full-size chassis based on the Ford F-Series, increasing size, weight, and capability across the board.

• Coil spring front suspension: Unlike later solid axle leaf setups in trucks, the 1978 Bronco uses a coil spring front suspension with radius arms, similar in design philosophy to the Early Bronco but scaled up for full-size use.

• Removable hard top design: The full removable rear hard top continued, but on a much larger body, creating unique sealing and fitment considerations.

• F-Series drivetrain components: Engines, transmissions, axles, and many drivetrain parts are shared with the F-150 platform, making parts sourcing more truck-based than Early Bronco-based.

1978 vs 1979 Bronco Differences

• Minor refinement year: The 1978 Bronco was the first year of the platform, while 1979 introduced small refinements rather than major redesigns.

• Parts overlap: Many components are shared between 1978 and 1979, but some parts—especially emissions-related, electrical, and trim components—can vary between the two years.

• Fitment awareness: While often grouped together, it is still important to verify year-specific differences when ordering parts, particularly for engine and electrical systems.

Why 1978 Broncos Are Different

• Completely different platform from 1966-77 Early Broncos.

• Heavy parts crossover with 1978 F-150 trucks.