Ford Bronco Engine Mounts: A Guide for the 1978-1983 Models
Stop the shaking and clunking by understanding and replacing your old engine mounts.
- Bad mounts cause vibration and clunking noises, especially when shifting gears.
- Replacement is a DIY-friendly job that can be done in an afternoon with basic tools.
- Aftermarket brands like Westar, Anchor, and DEA are affordable and readily available solutions for this older truck.
- There are no known recalls or TSBs specifically for engine mounts on the 1978-1983 Bronco.
Is Your Bronco's Engine Shaking Too Much?
After decades of use, the original rubber engine mounts on your 1978-1983 Bronco have likely seen better days. Heat, oil, and time cause the rubber to get hard, crack, or turn to mush. When this happens, the mount can't do its job of holding the engine securely. This leads to a number of problems you can feel and hear while driving.
Signs of a Bad Engine Mount
If your engine mounts are failing, you will likely notice one or more of these symptoms. 🎬 Watch: A mechanic's guide to diagnosing bad motor mounts. A completely broken mount is a serious issue that needs to be addressed right away.
- Excessive Vibration: This is the most common sign. You'll feel a strong vibration in the steering wheel, floor, or seats, especially when the truck is idling in gear.
- Clunking Noises: A loud 'clunk' or 'thud' when you shift from Park into Drive or Reverse is a classic symptom. You might also hear noise when you accelerate or brake hard as the engine shifts.
- Visible Engine Movement: Have a friend help you with this test. With the hood open and the parking brake set firmly, have them stand to the side while you start the engine, hold the brake, and shift between Drive and Reverse. If they see the engine lift or rock more than an inch or two, the mounts are bad.
A Warning About Failed Mounts
A completely separated engine mount is dangerous. It can allow the engine to move enough to damage hoses, wiring, or the fan shroud. In a worst-case scenario, it can affect your throttle linkage or cause the fan to hit the radiator. Don't ignore the symptoms.
Choosing the Right Aftermarket Mount
For a classic truck like the '78-'83 Bronco, finding original Ford (Motorcraft) parts is nearly impossible. The good news is that several aftermarket companies make affordable replacements. Brands like Anchor, DEA, Westar, and Pioneer are widely available. These are generally considered economy-level parts. While they may not last as long as the originals, they are a huge improvement over broken mounts and are very budget-friendly. Given the low cost, many owners choose to replace them every few years as part of regular maintenance.
| Brand | General Reputation | Notes for Bronco Owners |
|---|---|---|
| Westar / Pioneer | Standard Quality | Often seen as a decent value. Some forum users prefer the design of Westar mounts for older Fords. |
| Anchor / DEA | Economy Quality | Very common and affordable. They get the job done but some users report a shorter lifespan. A new Anchor mount is still much better than a 40-year-old broken one. |
Frequently Asked Questions (FAQ)
Are there any recalls for 1978-1983 Bronco engine mounts?
No. Searches of the National Highway Traffic Safety Administration (NHTSA) database and Technical Service Bulletins (TSBs) show no specific recalls or bulletins for engine mount failure on this generation of Ford Bronco.
Can I replace the engine mounts myself?
Yes, this is a job a DIY mechanic can handle. It requires a good floor jack, jack stands, and a basic set of wrenches and sockets. The basic process involves supporting the engine from below with a block of wood on the oil pan, unbolting the old mount, jacking the engine up just enough to remove it, and installing the new one. It's recommended to do one side at a time.
🎬 See this walkthrough of installing mounts on an old Ford.Should I replace both mounts at the same time?
Yes. If one mount has failed, the other is likely not far behind. Replacing them in pairs ensures proper engine alignment and support. It's also a good time to inspect your transmission mount, as it is subjected to similar stress.
🎬 Watch: How to check your engine and transmission mounts.Are aftermarket mounts as good as OEM for my Bronco?
For a vehicle of this age, aftermarket mounts are the most practical and affordable option. While an original Motorcraft part would be higher quality, they are very difficult to find. The available aftermarket brands provide a functional and safe solution at a low cost.
Helpful Videos
Technical Specifications
The engine mounts for the 1978-1983 Ford Bronco are a two-piece design, consisting of a frame-side bracket and an engine-side mount with integrated rubber insulation. They attach with through-bolts. The specific mount may vary depending on whether you have a 302, 351M, 351W, or 400 V8 engine.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.