Ford Aerostar Rear Brake Drum Replacement Guide (1986-1997)
Get your Aerostar's stopping power back by understanding how to choose the right replacement rear brake drums.
- A pulsating brake pedal on an Aerostar often points to out-of-round rear drums.
- Always replace brake shoes and hardware springs when installing new drums for safety and performance.
- For this vehicle, premium aftermarket brands like Bendix or Centric offer quality that meets or exceeds the original 1980s parts.
- If a new drum won't fit, you must retract the brake shoes using the star adjuster through the back of the brake plate.
Signs of a Failing Brake Drum
Your Aerostar will give you clues when the rear brake drums need attention. A worn or out-of-round drum can be a safety issue, so it's best to address these symptoms quickly.
- Pulsating Brake Pedal: If you feel the brake pedal pulsing up and down when you apply the brakes, it's a common sign that a drum is out-of-round. This means the drum is no longer perfectly circular, causing uneven braking.
- Scraping or Grinding Noises: A loud scraping or grinding sound from the rear of the van when you brake usually means the brake shoes are completely worn out and metal is grinding against the drum. This will damage the drum and requires immediate attention.
- Vibrations When Braking: Similar to a pulsating pedal, you might feel a vibration through the whole van, especially during moderate to hard braking. This is another symptom of an out-of-round drum.
- Handbrake Feels Loose or Ineffective: If your parking brake handle pulls up much higher than it used to, or if the van still rolls with the brake set, it can indicate that the drums and shoes are excessively worn.
- Sticking Brakes: In some cases, components inside the drum, like the self-adjusters, can fail or over-tighten, causing the brakes to drag or stick even when you're not braking. You might notice a burning smell from the rear wheels after a drive.
Choosing the Right Aftermarket Brake Drum
Since original Ford (OEM) brake drums for a 1986-1997 Aerostar are no longer available, you will be choosing from aftermarket brands. The good news is that modern aftermarket parts often meet or exceed the quality of the original parts from the 80s and 90s. Aftermarket brands can be grouped into tiers based on quality, reputation, and price.
Aftermarket Brand Tiers
| Tier | Brands | Description |
|---|---|---|
| Premium | Bendix, Raybestos (Element3), Centric (Premium) | These brands are known for high-quality materials, precision manufacturing, and excellent performance. They often feature coatings to prevent rust on non-braking surfaces and are built to meet or exceed OE specifications. They are a top choice for owners who want the best durability and performance. |
| Standard / Daily Driver | ACDelco (Professional), Centric (C-Tek), Dynamic Friction | This is the sweet spot for most owners, offering a great balance of quality and value. These parts are reliable for normal, everyday driving and are often the go-to choice for independent repair shops. Quality is generally very good and consistent. |
| Economy | Pronto, Store Brands | Economy drums meet basic safety requirements and are the most affordable option. They are a workable solution for a budget repair, but may not have the same lifespan or corrosion resistance as higher-tier options. Quality can be inconsistent. |
A Note on Quality Control
Even with reputable brands, manufacturing defects can occur. Some mechanics recommend having new drums checked for balance or turning them lightly before installation to ensure a perfectly smooth surface, though this is not usually required. Always inspect a new drum for visible casting flaws or shipping damage before you begin the installation.
Frequently Asked Questions
Are there any recalls on 1986-1997 Ford Aerostar brake drums?
No, there are no specific recalls for the brake drums on the 1986-1997 Ford Aerostar. Searches of the NHTSA database show recalls for newer Ford vehicles related to brake lines and hoses, but none that apply to the drums on this van.
Should I replace brake shoes and hardware at the same time?
Yes, it is highly recommended. New drums should always be paired with new brake shoes. Using old, worn shoes on a new drum will cause uneven wear and reduce braking performance. A hardware kit, which includes new springs and clips, is inexpensive and ensures the self-adjusters and other moving parts work correctly.
What tools are needed to replace Aerostar brake drums?
You will need standard tools like a jack, jack stands, a lug wrench, and a socket set. A hammer may be needed to free a stuck drum. To work on the brake shoes and hardware inside, a brake spoon for the adjuster and a brake spring tool are very helpful, but the job can often be done with pliers and screwdrivers.
Why is my new brake drum hard to install?
If a new drum won't slide on, it's almost always because the new brake shoes need to be adjusted inward. On the back of the brake backing plate, there is a small slot, often covered by a rubber plug. You can use a brake spoon or a flathead screwdriver to turn the star-shaped adjuster wheel inside, which will retract the shoes and provide the clearance needed to fit the drum.
Technical Specifications
Brake drum size for most 1986-1997 Ford Aerostars is 10 inches by 2.5 inches. Always confirm the exact size for your specific model and year before ordering.
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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.
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