GMC R2500 Drum Brake Hardware Kit Guide for 1987-1989 Models
Everything you need to know before replacing the rear drum brake hardware on your classic GMC R2500 truck.
- Always replace the drum brake hardware kit when you replace the brake shoes.
- Verify your truck's specific drum size (e.g., 13" or 11") before ordering parts to avoid errors.
- Symptoms of failure include noise, a low brake pedal, and a weak parking brake.
- For DIY replacement, work on one side at a time to use the other as a reference guide.
Is Your R2500's Rear Brake Hardware Worn Out?
The springs and clips in your drum brake system are under constant tension and heat. Over 30+ years, they can weaken, rust, and break. When this happens, your brakes won't work as they should. It is always recommended to replace the hardware kit whenever you replace your brake shoes to ensure safety and proper performance. Ignoring worn hardware can lead to uneven brake wear, noise, and even brake failure.
Symptoms of Failing Drum Brake Hardware
- Scraping or Grinding Noises: A broken spring can allow a shoe to drag against the drum, causing a constant metallic scraping sound.
- Spongy or Low Brake Pedal: If the self-adjuster mechanism fails, the shoes move too far from the drum. This means you have to push the pedal further down to make contact, resulting in a soft or low pedal.
- Parking Brake Issues: A weak or failed parking brake can be a sign of worn hardware that is no longer holding the shoes securely.
- Brake Dragging: Weak return springs may not pull the shoes fully away from the drum, causing the brakes to drag. This creates excess heat and wears out your shoes and drums prematurely.
Common Ordering Mistake: Wrong Brake Size
The 1987-1989 GMC R2500 was available with different rear axle and brake options. The most common sizes are 13" x 2.5" and 11" drums. Before ordering a hardware kit, you must confirm the size of your truck's brake drums. Check your vehicle's RPO codes (usually on a sticker in the glove box) or measure the inner diameter of the drum to be certain.
Choosing the Right Aftermarket Hardware Kit
For a vehicle from the late 1980s, finding original OEM parts can be difficult and often unnecessary. Reputable aftermarket brands provide quality that meets or exceeds original specifications for a fraction of the cost. The key is to choose a well-known brand over a generic, unbranded kit.
- Good (Economy): Brands like Carlson and some lines from Centric offer reliable, budget-friendly kits. They are a solid choice for a standard daily-driven truck and meet all necessary safety standards.
- Better (OE-Quality): Brands like Dynamic Friction (DFC) and premium lines from Centric are designed to be direct OE-quality replacements. They often feature better materials and coatings for improved corrosion resistance, making them a great value for a truck that sees regular use.
All listed brands (Carlson, Centric, Dynamic Friction) are established manufacturers that produce reliable hardware for your R2500. The primary difference is often in the corrosion-resistant coatings and the inclusion of every minor clip and pin, which can make installation easier.
Pro Tip for DIY Installation
When replacing your drum brake hardware, only take apart one side at a time. This allows you to use the fully assembled other side as a perfect visual guide for how all the springs and clips are supposed to go back together. Taking a photo with your phone before you start is also a great idea.
Cost to Replace Drum Brake Hardware on a 1987-1989 GMC R2500
| Part/Service | Estimated Cost |
|---|---|
| Aftermarket Hardware Kit | $11 - $17 |
| Shop Labor (as part of a full rear brake job) | $150 - $300 |
| Total (DIY) | $11 - $17 |
| Total (Installed at Shop) | $161 - $317+ |
Frequently Asked Questions
Do I really need to replace the hardware with the shoes?
Yes. It is highly recommended. The old springs have been heat-cycled thousands of times and have lost their tension. Reusing them can cause noise, dragging, and improper brake adjustment. For the low cost of the kit, it is cheap insurance for a safe and quiet brake job.
Are there any recalls for the 1987-1989 GMC R2500 drum brakes?
No, searches of the National Highway Traffic Safety Administration (NHTSA) database did not find any open recalls specifically for the drum brake hardware on 1987-1989 GMC R2500 trucks.
Is this a difficult job to do myself?
Replacing drum brake hardware is more complex than changing disc brake pads. It requires patience and a few special tools, like a brake spring tool, to handle the strong springs safely. However, it is a manageable DIY project for someone with mechanical experience. Watching a tutorial video can be very helpful.
What's the difference between the primary and secondary brake shoe?
In a typical drum brake setup, one shoe (the primary) has a shorter lining than the other (the secondary). The primary shoe goes toward the front of the vehicle. Installing them backward will negatively affect braking performance.
Technical Specifications
OEM Part Numbers: 15003097
Kits typically include return springs, hold-down springs, pins, clips, and self-adjuster components. Designed for either 13" x 2.5" or 11" x 2.75" rear drum brakes, depending on the specific R2500 configuration.
We Have This Part in Stock
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.
- GMC R2500:
- 🛍️ Shop This Part
- Is Your R2500's Rear Brake Hardware Worn Out?
- Symptoms of Failing Drum Brake Hardware
- Common Ordering Mistake: Wrong Brake Size
- Choosing the Right Aftermarket Hardware Kit
- Pro Tip for DIY Installation
- Cost to Replace Drum Brake Hardware on a 1987-1989 GMC R2500
- Frequently Asked Questions
- 🎟️ Get 5% Off