Guide to Replacing Rear Drum Brake Hardware on a 1973-1977 Buick Century
Restore your classic Century's stopping power by replacing old, tired drum brake springs and hardware.
- Always replace the drum brake hardware kit when installing new brake shoes to ensure safety and performance.
- For a 1973-1977 Century, any new aftermarket hardware kit is a major improvement over 50-year-old original parts.
- Symptoms like scraping noises, a weak parking brake, or the car pulling to one side point to worn drum brake components.
- Brands like Carlson, Raybestos, and Centric are reliable choices for this part.
Is Your Buick Century's Braking Feeling Off?
On a classic car like the 1973-1977 Buick Century, the brake system is critical for safety. While much attention is given to brake shoes and drums, the small metal parts that hold everything together are just as important. The drum brake hardware—an assortment of springs, clips, and pins—gets tired after 50+ years. Heat from braking and constant tension cause these springs to weaken. When they fail, it can lead to poor braking performance and strange noises.
Signs of Failing Drum Brake Hardware
🎬 Watch how drum brakes operate and identify common signs of trouble.- Scraping or Grinding Noises: When you brake, you might hear noises from the rear wheels. This can happen if a weak or broken spring allows a brake shoe to drag against the drum.
- Weak Parking Brake: If you set the parking brake and the car still rolls a little, it could be a sign that the hardware isn't holding the shoes tightly against the drum.
- Spongy or Soft Brake Pedal: While often a sign of hydraulic issues, worn hardware can contribute to a pedal that feels less firm than it should.
- Pulling to One Side: If the hardware on one side is more worn than the other, it can cause uneven braking, making the car pull left or right when you stop.
Choosing the Right Aftermarket Hardware Kit
For a vehicle from this era, finding new original GM (OEM) parts is nearly impossible. Fortunately, the aftermarket provides many quality options that are readily available and affordable. For a simple but crucial part like a hardware kit, any new kit from a reputable brand will be a significant upgrade over 50-year-old original parts. All the brands listed offer kits that meet original equipment specifications.
Pro Tip: Always replace the drum brake hardware whenever you replace your brake shoes. The small additional cost ensures the entire brake job is done right and will last for many years. It's a cheap insurance policy against future brake problems.
Aftermarket Brand Options
The brands available for your Century are all well-established in the aftermarket. There isn't a huge performance difference between them for a standard part like this, so choosing based on price and availability is a reasonable approach.
- Standard Quality (Good): Carlson, Centric, Raybestos, Dynamic Friction. These brands are trusted by mechanics and are known for producing reliable brake components. Carlson specializes in brake hardware, while Raybestos and Centric are major names in the entire brake system category.
- Economy / Standard (Variable): Dorman. Dorman offers a vast catalog of parts, but quality can sometimes be inconsistent. However, for a basic hardware kit, their products are generally considered acceptable.
Estimated Costs for Drum Brake Hardware Replacement
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Hardware Kit | $10 - $22 |
| Shop Labor (Hardware Only) | $100 - $200 |
| Complete Rear Brake Job (Shoes, Hardware, Labor) | $350 - $550 |
Note: Costs are estimates and can vary by location and repair shop. A complete brake job is recommended.
Frequently Asked Questions (FAQ)
Do I have to replace the hardware when I replace my brake shoes?
Yes, it is highly recommended. The old springs have been through countless heat cycles and have lost their original tension. Installing new shoes with old hardware can lead to noise, premature wear, and poor performance. For the low cost of a kit, it's not worth skipping.
What parts are included in a drum brake hardware kit?
A typical kit includes all the necessary springs (return springs, adjuster springs), hold-down pins, and clips for both rear wheels. It provides everything you need to ensure the new shoes operate correctly.
Are there any recalls for the 1973-1977 Century brakes?
There are no specific recalls for the drum brake hardware itself. However, a recall was issued for some 1973 models concerning a master cylinder issue (NHTSA ID: 73V152000), and another for 1978+ models (which may share designs) for an issue with the brake backing plate that could cause the wheel cylinder to rotate (Transport Canada ID: 1986153). This highlights the importance of inspecting the entire brake system when doing any repairs.
Can I do this replacement myself?
Yes, if you have mechanical experience. However, drum brakes can be tricky due to the high tension of the springs. Special tools like brake spring pliers and a hold-down spring tool can make the job much easier and safer. If you are not confident, it's best to have a professional mechanic do the work.
Helpful Videos
Technical Specifications
Kit typically contains return springs, hold-down springs, actuator springs, pins, and clips for a complete two-wheel (rear axle) service.
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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.