Upgrade Your Jeep Yj Brake Booster For Enhanced Performance

Jeep CJ and YJ Power Brake Conversion Kit
Jeep CJ and YJ Power Brake Conversion Kit from davescustomsunlimited.com


If you own a Jeep YJ and are looking to improve its braking performance, upgrading the brake booster is a great option. The brake booster plays a crucial role in amplifying the force applied to the brake pedal, resulting in better stopping power. In this article, we will discuss the benefits of upgrading your Jeep YJ brake booster and guide you through the process.

Why Upgrade?

The stock brake booster in the Jeep YJ may not provide sufficient braking power, especially if you have made modifications to your vehicle or use it for off-roading. Upgrading to a larger brake booster will increase the hydraulic pressure applied to the brakes, allowing for better stopping performance and improved overall safety.

Choosing the Right Brake Booster

When selecting a brake booster upgrade for your Jeep YJ, it is important to consider factors such as the size, compatibility, and brand reputation. Opt for a brake booster that is specifically designed for your Jeep model to ensure a proper fit and optimal performance. Research customer reviews and seek recommendations from fellow Jeep enthusiasts to make an informed decision.

Installation Process

Installing a new brake booster in your Jeep YJ may seem daunting, but with the right tools and a step-by-step approach, it can be a relatively straightforward process. Here is a general guide to help you get started:

1. Gather the Necessary Tools

Before you begin, make sure you have the required tools, including a socket wrench set, pliers, a brake bleeder kit, and a vacuum pump. Having all the necessary tools on hand will save you time and frustration during the installation process.

2. Prepare the Vehicle

Park your Jeep YJ on a flat surface and engage the parking brake. Disconnect the negative battery cable to ensure your safety throughout the installation process. Next, locate the brake booster and identify the brake lines connected to it.

3. Remove the Old Brake Booster

Start by disconnecting the brake lines from the old brake booster. Use a brake line wrench to loosen the fittings and carefully remove the lines. Next, unbolt the brake booster from the firewall using a socket wrench, making sure to support its weight as you remove the last bolt.

4. Install the New Brake Booster

Position the new brake booster in place and secure it to the firewall using the bolts provided. Reattach the brake lines to the new brake booster, making sure to tighten the fittings properly. Double-check all connections to ensure they are secure.

5. Bleed the Brakes

After installing the new brake booster, it is crucial to bleed the brakes to remove any air from the system. Use a brake bleeder kit and follow the manufacturer’s instructions to properly bleed the brakes.


Upgrading your Jeep YJ brake booster is a worthwhile investment that can significantly enhance your vehicle’s braking performance. By following the installation process outlined in this article, you can enjoy improved stopping power and increased safety while driving your Jeep YJ. Remember to always consult the manufacturer’s instructions and seek professional help if needed.