1977 Ford Bronco Parts

1977 Ford Bronco Parts Guide

The final year of the Early Bronco—refined, upgraded, and unique in key areas.

The 1977 Ford Bronco marked the final year of the original Early Bronco before Ford transitioned to the full-size platform. It carried over the major performance and drivability upgrades introduced the year prior, making it one of the most refined factory Broncos ever produced. At the same time, it introduced a few one-year-only changes that are important to understand when sourcing parts.

Things to Know When Shopping for a 1977 Bronco

The 1977 Bronco builds on the major improvements introduced over prior years, including front disc brakes, upgraded steering, and improved overall drivability. These features make it one of the most desirable Early Broncos from a performance standpoint.

However, 1977 also introduced several one-year-only changes—especially in the fuel system and rear body—that can impact parts selection. Knowing where these differences exist is key to getting the right parts the first time.

What Changed in 1977

• Fuel doors added: 1977 was the first year Early Broncos received external fuel doors on the rear quarter panels. This required new lower quarter panels, updated fuel filler neck assemblies, and changes to inner body components.

• Modified fuel filler system: The addition of fuel doors changed the routing and design of the filler neck extensions and related components, which also affects interior quarter panel trim.

• One-year-only rear fuel tank: A plastic rear fuel tank was introduced, mounted inside a steel skid plate basket. This design was only used in 1977 and is not commonly reproduced.

Fuel Tank Considerations

• Limited replacement options: The factory 1977 rear plastic fuel tank is a one-year-only design and is not widely reproduced.

• Common upgrade solution: Many owners replace the original tank with an aftermarket high-capacity tank, such as a 23-gallon unit, which offers improved range and easier serviceability.

Why 1977 Broncos Are Highly Desirable

• Final year of the Early Bronco platform.

• Factory front disc brakes and improved steering carried over from the prior year.

• More refined driving experience compared to earlier models.

• Unique features like fuel doors that distinguish it from earlier Broncos.

Common Mistakes When Buying 1977 Bronco Parts

• Assuming fuel system components match earlier Broncos.

• Overlooking differences in quarter panels and filler neck assemblies.

• Trying to source direct replacements for the factory plastic fuel tank.

• Not considering upgraded fuel tank options for better performance and availability.

Best Way to Shop for 1977 Bronco Parts

The best way to shop for a 1977 Bronco is to start with the full Early Bronco parts catalog and narrow down by category. Pay close attention to fuel system components, rear body panels, and tank options to ensure proper fitment and long-term reliability.