If you're looking to upgrade your 1967-73 Ford Mustang's braking system, let me tell you about this 12" SS4 Rear Brake Kit from Baer. This isn't just any brake kit; it’s got some serious engineering behind it. The S4 4-piston caliper is a standout feature, mounted on a solid 12-inch, one-piece, slotted and drilled rotor that’s zinc plated for extra durability. You’ll appreciate the attention to detail with D.O.T compliant dust and weather seals, which keep everything running smoothly, no matter the conditions.

Now, let’s talk about the caliper. It's made right here in Phoenix, AZ, using CNC machined US-sourced forged or billet aluminum. That means it’s not only lightweight but built to last. The caliper comes in a striking Fire Red finish, which looks great behind your wheels. Plus, it’s equipped with hard anodized aluminum pistons and stainless steel abutments, ensuring you won’t hear any annoying noise while you’re cruising. The dual seals for dust and weather protection are a nice touch, too.

One of the cool features of this kit is the unique backing plate. It acts as a caliper mount and houses a modern one-piece park brake shoe assembly. So, you’re not just getting better stopping power; you’re also getting a reliable parking brake system. And yes, it comes with stainless braided hoses, which are way more durable than the standard rubber hoses.

As for fitment, this kit is designed for the Ford 8"/9" small bearing housing ends, so make sure your Mustang matches that. It fits most 16-inch wheels and larger, so you won’t have to worry about clearance issues. Just to give you an idea, it clears 35s on a 2024 Tundra with minor trimming, but for your Mustang, you’ll be good with those 16s and up.

Features:

• 2-Piece, 4-Piston S4 Caliper, made in Phoenix, AZ
• CNC Machined from US Sourced Forged or Billet Aluminum
• Powder Coated Finish
• Hard Anodized Aluminum Pistons with Stainless Steel Abutments
• Noise Suppression Clips included
• Dual Seals for Dust/Weather & Pressure
• 1-Piece Slot, Drilled, Zinc-Plated Rotor

Specifications:

• Applications: Ford Mustang 67-73
• Axle: Rear
• Brand: Baer Brakes
• Caliper: S4
• Caliper Color: Fire Red
• Piston Quantity: 4
• Caliper Type: Fixed
• Disc Brake Pad FMSI Number: DR1-C
• Rotor Construction: Vented
• Rotor Outside Diameter: 12.000 inches
• Emission Code: 6
• Fitment Notes: For Ford 8/9" Small Bearing Housing Ends
• Includes Park Brake: Yes
• Includes Park Brake Cables: Yes
• Lug Count: 5 Lug
• Min Wheel Diameter: 16 inches (verify using template)
• Product Line: 12 Inch SS4
• Rotor Type: 1-Piece
• Surface Type: Slotted, Drilled & Zinc Plated
• Wheel Lug/Bolt Pattern: 5x4.50/5x4.75

So, if you’re ready to step up your Mustang’s braking game, this Baer 12" SS4 Rear Brake Kit is worth checking out. It’s built for performance and reliability, and it’ll give you the confidence to hit the road or the track without worrying about stopping power.