If you're looking to upgrade your classic Mustang's braking system, this Baer 12" SS4 Rear Brake Kit is a solid choice. It's designed specifically for the 1967-73 Ford Mustang with small bearing housing ends, so you know it’s going to fit right without any fuss. The heart of this kit is the S4 4-piston caliper, which is not just any caliper—it’s built tough in Phoenix, AZ, and comes with a sleek Monster Green powder-coated finish that’ll give your rear end a nice pop.
Let’s talk specs. The S4 caliper is CNC machined from high-quality forged or billet aluminum, ensuring durability without adding unnecessary weight. It features hard anodized aluminum pistons and stainless steel abutments, which help keep everything running smoothly and quietly. Plus, you’ve got dual seals here—dust/weather and pressure—to keep the grime out and performance up.
Now, about that rotor: it’s a 12-inch, one-piece design that’s slotted and drilled, and zinc plated for corrosion resistance. This rotor not only looks good but also helps with heat dissipation, which is crucial when you’re pushing your Mustang to its limits. You’ll want to know that this setup clears most 16" wheels, so you can fit your favorite rims without worrying about clearance issues.
Included in the kit are stainless steel braided hoses, which are a nice touch for both performance and aesthetics. And yes, it comes with a modern one-piece park brake shoe assembly, so you can rest easy knowing your Mustang will stay put when parked.
Here’s a quick rundown of what you get:
With a rotor thickness of 1.020 inches and a fixed caliper design, this kit is built for performance. Just keep in mind, it’s designed for the 5x4.50/5x4.75 lug pattern, so make sure your wheels match up. If you’re serious about improving your braking performance while keeping that classic look, this Baer kit is definitely worth considering.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1967-1973 Ford Mustang |
Mustang | 1967-1973 |

Baer Sports is a company that is based in Phoenix, Arizona, and was founded in 1986. The company specializes in manufacturing brake component products for the automotive industry. They provide an upgrade from the stock factory unit which suits drivers who appreciate a high level of driving performance on the street and on the track. Today, they are one of the leading brands when it comes to braking system parts.
Brake System ExpertsBaer offers a wide range of products ranging from larger calipers, brake rotors, brake masters, brake pads, and wheel spacers. They also offer conversion kits that turn your drum brakes into discs. That is why they are the favorite brand of many classic car owners who prefer the old-style look of classic cars but want the braking power of modern vehicles.
Consistent Quality ProductsThe company has always pushed itself in developing and manufacturing innovative parts that would meet the demand of their customers. They make sure that all their facilities have the same quality measures in place to ensure defect-free manufacturing.
Purchase Baer Products At Vivid RacingIf you are in the market for quality brake parts for your vehicle, then Baer Sports is the brand for you. They offer the best parts in the market today and are used by multiple enthusiasts from all over the world. Having both form and function, Baer Sports is the brand you can trust. To know more about Baer, visit Vivid Racing and check out their list of offerings that would fit your specific requirement.