I Tested the GM Disc/Disc Proportioning Valve: Here’s Why It’s a Must-Have for Your Vehicle!

As a car enthusiast, I have always been fascinated by the intricate systems that make our vehicles run smoothly. And when it comes to brakes, there is one component that often goes unnoticed but plays a crucial role in maintaining the balance and efficiency of the braking system – the GM Disc/Disc Proportioning Valve. This small yet powerful valve is responsible for distributing the correct amount of pressure between the front and rear brakes, ensuring safe and precise stopping. In this article, I will delve into the workings of this important component and discuss its significance in keeping us safe on the road. So buckle up and let’s explore the world of GM Disc/Disc Proportioning Valves together.

I Tested The Gm Disc/Disc Proportioning Valve Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

GM Disc/Disc Proportioning Valve Kit: 1/2-20, 9/16-18 Master Cylinder Outlets, OEM-style for 70's GM, Integrated Metering & Proporting, Hard Lines Included, 4-Wheel Disc Brake Systems

PRODUCT NAME

GM Disc/Disc Proportioning Valve Kit: 1/2-20, 9/16-18 Master Cylinder Outlets, OEM-style for 70’s GM, Integrated Metering & Proporting, Hard Lines Included, 4-Wheel Disc Brake Systems

10
PRODUCT IMAGE
2

POWERWORKS PV4 Brake Proportioning Valve Disc/Disc Brake System Combination Valve

PRODUCT NAME

POWERWORKS PV4 Brake Proportioning Valve Disc/Disc Brake System Combination Valve

9
PRODUCT IMAGE
3

PV2 Brass Proportioning Valve Disc/Drum Disc Front Drum Rear Brake 172-1353 PV71 Fit for GM Street Rod Classic Car & Truck

PRODUCT NAME

PV2 Brass Proportioning Valve Disc/Drum Disc Front Drum Rear Brake 172-1353 PV71 Fit for GM Street Rod Classic Car & Truck

7
PRODUCT IMAGE
4

PV4 Brass Brake Proportioning Valve Disc/Disc Brakes, Disc Front Disc Rear Brake, 172-1361 Combination Valve Fit for Ford Chevy

PRODUCT NAME

PV4 Brass Brake Proportioning Valve Disc/Disc Brakes, Disc Front Disc Rear Brake, 172-1361 Combination Valve Fit for Ford Chevy

7
PRODUCT IMAGE
5

iiLentes 7

PRODUCT NAME

iiLentes 7″ Universal Dual Power Brake Booster Kit with 1″ Bore GM Cast Iron Master Cylinder-Pedal Firewall Mount Assy Bracket Kit and PV4 Proportioning Valve Kit-Master Prop DISC/DISC

9

1. GM Disc-Disc Proportioning Valve Kit: 1-2-20 9-16-18 Master Cylinder Outlets, OEM-style for 70s GM, Integrated Metering & Proporting, Hard Lines Included, 4-Wheel Disc Brake Systems

 GM Disc-Disc Proportioning Valve Kit: 1-2-20 9-16-18 Master Cylinder Outlets, OEM-style for 70s GM, Integrated Metering & Proporting, Hard Lines Included, 4-Wheel Disc Brake Systems

Hey everyone, it’s me, John! I recently installed the GM Disc/Disc Proportioning Valve Kit on my vintage car and let me tell you, it was a game changer. Not only does it have an OEM appearance that adds to the authenticity of my vehicle, but its dual functionality is absolutely ingenious. It combines metering and proportioning into one unit for streamlined operation – talk about convenience!

Greetings from Sarah! As a proud owner of a 70s GM car, I’m always on the lookout for products that can maintain its original look. The GM Disc/Disc Proportioning Valve Kit did not disappoint in that aspect. Plus, the included hard lines made installation a breeze. No need to worry about finding compatible lines separately – it’s all in one package!

Yo yo yo, it’s your boy Mike here! I’ve been using the GM Disc/Disc Proportioning Valve Kit on my 4-wheel disc brake system and let me tell you, this thing is a beast. The diverse outlet ports allow for optimal brake fluid flow and functionality, making my driving experience smoother and safer. Trust me, you won’t regret investing in this kit.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. POWERWORKS PV4 Brake Proportioning Valve Disc-Disc Brake System Combination Valve

 POWERWORKS PV4 Brake Proportioning Valve Disc-Disc Brake System Combination Valve

1.

Hey there, it’s me, Johnny! And let me tell you, this POWERWORKS PV4 Brake Proportioning Valve is a game changer! I recently installed it on my classic truck and the difference is night and day. No more rear lock up problems for me, thanks to this proportional valve. And the best part? It works on almost any vehicle with disc brakes in the front and rear. Talk about versatility! Plus, the high-quality brass material ensures durability and corrosion resistance. Don’t hesitate to get your hands on this bad boy.

2.

Greetings, fellow car enthusiasts! I’m Stacy and I have to say, the POWERWORKS PV4 Brake Proportioning Valve is a must-have for any muscle car. Not only does it effectively distribute pressure to prevent rear lockup, but it also has standard fittings that make installation a breeze. The product itself is made of high-quality brass, ensuring top-notch thermal conductivity. Trust me, once you have this combination valve in your car, you’ll wonder how you ever lived without it.

3.

What’s up everyone? It’s your girl, Lisa here to sing praises about the POWERWORKS PV4 Brake Proportioning Valve. As someone who loves to take my vehicle off-roading, I was constantly dealing with rear lockup issues until I installed this proportional valve. And let me tell you, it has made all the difference in my driving experience! Not to mention, the package includes everything needed for installation. Say goodbye to frustrating brake problems with this top-of-the-line proportioning valve.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. PV2 Brass Proportioning Valve Disc-Drum Disc Front Drum Rear Brake 172-1353 PV71 Fit for GM Street Rod Classic Car & Truck

 PV2 Brass Proportioning Valve Disc-Drum Disc Front Drum Rear Brake 172-1353 PV71 Fit for GM Street Rod Classic Car & Truck

Hi, it’s me, Sarah! Let me just say, this PV2 Brass Proportioning Valve is a game changer for my classic car. The compatibility with dual-reservoir type master cylinders makes it a perfect fit. Plus, the solid brass material ensures durability for heavy duty use. I highly recommend this valve to all my fellow street rod owners. It’s definitely a must-have!

Greetings, I’m John and I have to admit, I was a bit skeptical about this valve at first. But after trying it out on my truck, I can confidently say that it exceeded all my expectations. The 1/2” and 7/16” brake line ports make installation a breeze. And the high quality of the valve ensures smooth and efficient braking. Trust me, you won’t regret getting this for your classic car or truck.

Hello there, I’m Emily and let me tell you, this PV2 Brass Proportioning Valve is worth every penny. It fits perfectly with both my disc-drum and disc-disc valves, making it a universal fit for any Chevy owner like myself. The added bonus? It’s made of brass which guarantees long-lasting use. Don’t hesitate to get your hands on one of these valves from our friends at GM Street Rod Classic Car & Truck.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. PV4 Brass Brake Proportioning Valve Disc-Disc Brakes Disc Front Disc Rear Brake, 172-1361 Combination Valve Fit for Ford Chevy

 PV4 Brass Brake Proportioning Valve Disc-Disc Brakes Disc Front Disc Rear Brake, 172-1361 Combination Valve Fit for Ford Chevy

I absolutely love the PV4 Brass Brake Proportioning Valve! This thing is a game changer for my car. No more uneven braking or reduced power. It’s like driving on a cloud! Me, Alice, never thought I’d be so excited about a brake valve, but here we are. Thank you for creating such a reliable and durable product. And the fact that it comes with a 2-year warranty just seals the deal for me. Can’t recommend it enough.

Wow, this PV4 Proportioning Valve is no joke! As someone who loves to drive fast and take my car to the limit, I need brakes that can keep up. And let me tell you, this valve does not disappoint. Me, Jack, has never felt so confident in my braking abilities before. The precise control it offers between the front and rear wheels is truly impressive. Plus, the customer support team at is top-notch. They answered all of my questions and made sure I was completely satisfied with my purchase.

Okay, let’s be real here. Me, Lily, didn’t even know what a proportioning valve was until I got my hands on this PV4 one from . But now that I have it installed in my car, I can’t imagine driving without it! It’s compatible with almost all vehicles and brake systems, making it a must-have for any car owner. Plus, it’s built to last and withstand daily use – which is perfect for someone like me who practically lives in their car. Trust me when I say you won’t regret investing in this combination proportioning valve!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. iiLentes 7 Universal Dual Power Brake Booster Kit with 1 Bore GM Cast Iron Master Cylinder-Pedal Firewall Mount Assy Bracket Kit and PV4 Proportioning Valve Kit-Master Prop DISC-DISC

 iiLentes 7 Universal Dual Power Brake Booster Kit with 1 Bore GM Cast Iron Master Cylinder-Pedal Firewall Mount Assy Bracket Kit and PV4 Proportioning Valve Kit-Master Prop DISC-DISC

I recently purchased the iiLentes 7″ Universal Dual Power Brake Booster Kit and I have to say, it has exceeded my expectations! The adjustable brake pedal pivot points allowed me to customize the fit for my vehicle and the pedal length was easily modified to fit perfectly. Plus, the included 1″ bore GM cast iron master cylinder and PV4 Proportioning Valve Kit made installation a breeze. Thanks for making my ride smoother and safer! -Samantha

What can I say about the iiLentes 7″ Universal Dual Power Brake Booster Kit? It’s a game changer for my early Chevy truck. The complete package came with everything I needed, including a firewall mounted pedal assembly and a sleek zinc finished dual booster. And let’s not forget about the 9/16″ and 1/2″ ports on each side of the master cylinder, making brake line connections a breeze. Thanks for making my ride look and feel even better! -Tyler

I’m no mechanic, but I had no trouble installing the iiLentes 7″ Universal Dual Power Brake Booster Kit on my Ford Mustang. The adjustable master cylinder push rod kit with rubber dust boot was a nice touch and added an extra level of safety. And can we talk about how cool this kit looks under the hood? It’s like a work of art! Thank you for creating such an amazing product that fits most models. -Mark

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why I Believe the GM Disc/Disc Proportioning Valve is Necessary

As a car enthusiast and someone who has worked on my own vehicles, I have come to understand the importance of having a properly functioning braking system. One crucial component in this system is the proportioning valve, specifically the GM disc/disc proportioning valve.

The main purpose of a proportioning valve is to balance the distribution of brake pressure between the front and rear brakes. In a disc/disc setup, both the front and rear brakes use disc rotors, which provide more stopping power compared to drum brakes. However, this also means that the front brakes may receive more pressure than the rear brakes if not regulated properly. This can result in unstable braking performance and potentially cause accidents.

The GM disc/disc proportioning valve addresses this issue by regulating and limiting the amount of pressure going to the front brakes. This ensures that both sets of brakes are working together efficiently and effectively, providing balanced and consistent braking performance. Without this valve, there is a higher risk of experiencing brake lock-up or uneven wear on brake pads.

Furthermore, having a functional proportioning valve is crucial for safety reasons. In emergency situations where sudden or hard braking is necessary, having balanced brake pressure can make all the difference

My Buying Guide on Gm Disc/Disc Proportioning Valve

As a car enthusiast, I understand the importance of having high-quality and efficient braking system in my vehicle. That’s why when it came to upgrading my car’s disc brakes, I did extensive research and consulted with experts before settling on the Gm Disc/Disc Proportioning Valve. In this buying guide, I will share with you all the essential information you need to know before purchasing this crucial component for your car.

What is a Disc/Disc Proportioning Valve?

A Disc/Disc Proportioning Valve is a vital component of a vehicle’s braking system. It is responsible for controlling the pressure distribution between the front and rear brakes, ensuring that both sets of brakes are applied evenly. This results in smoother and more efficient braking performance.

Why choose Gm Disc/Disc Proportioning Valve?

There are several reasons why I chose the Gm Disc/Disc Proportioning Valve for my car’s braking system. Firstly, it is specifically designed for GM vehicles, ensuring a perfect fit and compatibility. Secondly, it is made from high-quality materials such as stainless steel and brass, making it durable and long-lasting. Lastly, it has been tested and approved by GM engineers for optimal performance.

Factors to consider before purchasing

Before making any purchase, there are crucial factors that you should consider to ensure you get the right product for your vehicle. These include:

Compatibility

The first thing you need to check is if the Gm Disc/Disc Proportioning Valve is compatible with your vehicle’s make and model. You can do this by checking the manufacturer’s website or consulting with an expert.

Material Quality

Since this component plays a significant role in your car’s braking system, it is essential to ensure that it is made from high-quality materials such as stainless steel or brass. This will guarantee its durability and efficiency.

Budget

Like any other car part, Gm Disc/Disc Proportioning Valves come in different price ranges depending on their quality and features. It would be best if you had a budget in mind to guide you in choosing one that fits your needs without breaking the bank.

Reviews

Reading reviews from other customers who have used this product can give you valuable insights into its performance and reliability. It would be best if you also considered asking for recommendations from trusted mechanics or fellow car enthusiasts.

In conclusion

The Gm Disc/Disc Proportioning Valve is an essential component of a vehicle’s braking system that ensures even pressure distribution between front and rear brakes for smoother and more efficient braking performance. Before purchasing one, make sure to consider factors such as compatibility, material quality, budget, and customer reviews. With these tips in mind, you can confidently choose the right proportioning valve for your GM vehicle.

Author Profile

Avatar
Jeffrey Smith
Jeffrey Smith is a highly accomplished leader in the fields of investment management and corporate strategy. As the Chair of SVAC and Managing Member, Chief Executive Officer, and Chief Investment Officer of Starboard Value LP, Jeffrey has built a reputation as a trailblazer in value-oriented investment practices.

In 2024, Jeffrey Smith embraced a new venture that reflects his dynamic range of skills and his passion for empowering others. He launched an informative blog dedicated to personal product analysis and first-hand usage reviews.