Upgrading your classic Chrysler to a dual circuit brake system involves several crucial steps. First, understand that this system increases safety by using separate circuits for front and rear brakes. Essential tools include wrenches, a brake bleeder kit, and a flaring tool kit. Begin by lifting the vehicle with a jack, removing the existing single-line system, and draining old brake fluid responsibly. Next, install a compatible dual master cylinder and stainless-steel brake lines for durability. Incorporate proportioning valves to optimize brake force distribution. Finally, conduct thorough testing to ensure a firm pedal feel and effective braking performance, discovering more as you proceed.

Understanding Dual Circuit Systems

A dual circuit brake system is an important feature in cars for safety. It splits the brakes into two parts. If one part stops working, the other still works. This helps prevent complete brake failure.

Old Chrysler cars had brakes that worked with just one line. If that line failed, the brakes would not work at all. Switching to a dual system makes these cars safer.

In a dual circuit system, one part works the front brakes, and the other part works the rear brakes. This setup helps the car stop better, especially in emergencies. Many old cars don't have this setup, which can be risky.

In the 1960s, cars like the Chrysler had only one hydraulic line for brakes. If this line broke, the brakes would fail.

Tandem master cylinders are often used in dual systems. They have two separate parts in one unit. This makes sure that if one part leaks, the other still keeps working.

Changing to a dual circuit needs careful planning to keep the car's original feel while making it safer.

Necessary Tools and Equipment

To upgrade a classic Chrysler to a dual circuit brake system, you'll need the right tools and equipment. Start with a good set of wrenches and socket sets for loosening and tightening parts.

A flaring tool kit is needed to make brake line connections, which are important for keeping the hydraulic system intact. A brake bleeder kit is used to remove air from the brake lines, helping the brakes work well.

Use a torque wrench to fasten bolts and nuts correctly, so they don't come loose or tighten too much. Wear safety goggles and gloves to protect against brake fluid and other hazards.

When choosing brake lines, you can pick between steel and copper-nickel. Steel lines are strong but may rust, while copper-nickel lines are flexible and resist rust better.

Using the correct tools for each job is key to a successful upgrade.

Removal of Existing Brake System

To begin removing the brake system on a classic Chrysler, first lift the car with a hydraulic jack and secure it using jack stands. This will keep the car stable while you work underneath.

Then, take off the wheels to get to the brake parts.

Disconnect the brake lines from the master cylinder using a line wrench to keep the nuts from getting damaged. Let the brake fluid flow into a container so you don't harm the environment or cause spills.

After the fluid is out, take off the master cylinder by removing the bolts holding it to the brake booster. Pull it away gently to avoid spilling any leftover fluid.

Check the brake booster for any damage or wear that might affect the new system.

Remove the brake drums or calipers next, followed by the brake shoes or pads and the rotors.

Make notes or take pictures of where each part goes to make putting it back together easier later.

Installation of New Components

To upgrade a classic Chrysler's brake system, follow these steps for smooth and safe performance.

Start by choosing a dual master cylinder that fits your car's year and model. Brands like Wilwood offer high-performance options, while ACDelco focuses on long-lasting parts.

Next, work on the brake lines. Use stainless steel lines for their durability against rust and high pressure. Cut and flare each line correctly to prevent leaks.

Add proportioning valves to balance the front and rear brakes, which is important for the dual circuit system.

Choose calipers and rotors that match your master cylinder. Vented rotors with four-piston calipers can improve braking power.

Testing and Safety Checks

To check if the new dual circuit brake system works well, follow these steps:

1. Brake Pedal Feel: Press the brake pedal. It should feel firm and steady. If it feels soft, there could be air in the brake lines, and they might need to be bled.
2. Static Pressure Test: Keep pressing the brake pedal with consistent force. If the pedal moves down, there might be a leak or a problem with the master cylinder.
3. Road Test: Drive the vehicle to check how the brakes work. The car should stop smoothly and not veer to the side. If it does, the braking force may not be evenly distributed.

These steps help ensure the brake system is set up correctly and works as it should.

People Also Ask

What Are the Benefits of Upgrading to a Dual Circuit Brake System?

Switching to a dual circuit brake system makes cars safer. If one part of the brakes stops working, the other part still helps the car stop. This means better control and safety, especially in emergencies, making drivers feel more confident.

How Long Does the Upgrade Process Typically Take?

Upgrading to a dual circuit brake system usually takes between a few hours to a whole day. This depends on how well the car is working, if all the parts are ready, and how skilled the person doing the upgrade is.

Can I Upgrade My Brake System Without Professional Help?

Yes, you can upgrade your brake system by yourself, but it's hard and you'll need special tools and knowledge about cars. It's safer and better to ask a professional to help, so your brakes work well and meet safety rules.

Are There Specific Dual Circuit Systems Recommended for Chrysler Models?

When looking for dual circuit systems for Chrysler cars, it's best to choose kits made for old cars. These kits usually have parts like master cylinders and valves that fit the car well, making it safer and work better.

What Are the Common Mistakes to Avoid During the Upgrade?

When upgrading, don't forget to check if new parts fit your car. Replace the master cylinder if needed, and make sure all lines are connected properly. Bleed the system well to remove air. Use parts made for your car to stay safe.