Owners of GM trucks or SUVs equipped with a 14-bolt rear axle may consider upgrading from drum to disc brakes. The benefits of disc brakes are significant: enhanced stopping capabilities, more efficient heat dissipation, and simplified maintenance.

This guide aims to elucidate the process of transitioning your GM 14-bolt rear axle to disc brakes, offering comprehensive instructions and practical advice for a successful upgrade.

🚀Recommended article: 14 Bolt Dually Disc Brake Conversion Kit

Advantages of GM 14 Bolt Disc Brake Conversion

Advantages of GM 14 Bolt Disc Brake Conversion
Advantages of GM 14 Bolt Disc Brake Conversion

Understanding the advantages of disc brakes is crucial before embarking on the conversion:

  • Heightened Stopping Force: With a larger surface area for brake pad contact, disc brakes outperform drum brakes in stopping power.
  • Superior Heat Dissipation: Disc brakes are better at shedding heat due to their exposure to air, aiding in cooling.
  • Maintenance Ease: The simpler structure of disc brakes, with fewer moving parts, makes them less prone to seizing and easier to maintain.

Preparation: Gathering Your Tools

Preparation Gathering Your Tools
Preparation Gathering Your Tools

Before starting the conversion, ensure you have the following:

  • Disc Brake Conversion Kit: Contains all necessary components and hardware.
  • Torque Wrench: Crucial for applying the correct torque to bolts.
  • Basic Hand Tools: Including wrenches, sockets, screwdrivers, and a hammer.
  • Safety Glasses: Essential for eye protection.

🎯Suggested article: GM’s G Body Disc Brake Conversion Kit

Step 1: Removing Old Brakes

The initial step involves removing the existing drum brakes:

  1. Lift and securely support the rear of the vehicle.
  2. Detach the wheels.
  3. Extract the brake drums.
  4. Remove the brake shoes and associated hardware.

Step 2: Fitting the New Brakes

Following the removal of old brakes, proceed with installing the disc brakes:

  1. Position the new brake rotors.
  2. Fit the new brake calipers.
  3. Install the brake pads.
  4. Connect the brake lines.

Step 3: Bleeding the Brakes

Post-installation, bleeding the brake lines is essential to expel any trapped air:

  1. Attach a pressure bleeder to each caliper’s bleeder screw.
  2. Pump the brake pedal until fluid emerges from the bleeder screw.
  3. Secure the bleeder screw.
  4. Repeat for each caliper.

Step 4: Brake Testing

After bleeding, test the brakes to ensure proper functionality:

  1. Drive the vehicle around the block, performing several stops to assess brake response.

Helpful Hints for a Smooth Conversion

Here are a few tips for a successful conversion:

  • Tool Readiness: Have all the necessary tools for a smoother process.
  • Instruction Adherence: Follow the provided kit instructions meticulously.
  • Patience is Key: Avoid rushing; thoroughness leads to better results.

💥See also: Upgrade Your Brakes With a C1500 Rear Disc Brake Conversion

Conclusion

Upgrading your GM 14-bolt rear axle to disc brakes is a manageable task that can significantly enhance your vehicle’s braking performance and reliability.