If you're looking to upgrade your Mustang's braking system, the SS4+ rear setup from Baer is a solid choice. This isn't just any brake kit; it's got the S4 4-piston caliper paired with a robust 13-inch two-piece rotor that's been thoughtfully designed with slots and drills for improved performance. The zinc plating on the rotor helps resist corrosion, so you can hit the road with confidence, rain or shine.

One of the first things you'll notice is the quality of the components. The stainless steel brake hoses are a nice touch, and the calipers come equipped with D.O.T.-compliant dust and weather seals. That means they’re built to last, even in less-than-ideal conditions. Plus, the bearings are top-notch, and the NAS high-grade stainless hardware ensures everything stays secure without any fuss. This kit is pre-assembled, so you can spend less time tinkering and more time enjoying the drive.

Now, if you're rolling with 17-inch wheels, you're in luck. The SS4+ is designed to fit right in without compromising performance. It's a fantastic option for those who want to keep their stock wheels or for the enthusiasts looking to switch things up without going too big. And yes, the park brake cables are included, so you won't have to hunt for extra parts.

Fitment:

• Perfectly designed for 1979-1992 Ford Mustangs with an 8.800 Ford C-Clip rear end.
• This kit features a 4 x 4.250 inch wheel bolt pattern.

Why choose the SS4+?

• You get all the perks of Baer's larger brake systems, just in a compact form that fits those 17-inch wheels.
• Ideal for anyone wanting to maintain a classic look while still having the option to upgrade to larger wheels later.
• Everything you need is in the box, including hoses and fittings, so installation is a breeze.
• The 6061 T-6 billet aluminum hat is anodized black and securely bolted to the rotor for a sleek look.
• High-grade U281 fine thread stainless hardware with captured nuts means no more worrying about loose parts.

Features of the S4 Caliper:

• Four 10mm cross bolts provide maximum stiffness, which is crucial for performance.
• Stainless steel abutments and noise suppression springs keep things quiet and smooth.
• Hard anodized aluminum pistons help with durability and performance.
• The internal crossover design is a nice touch for improved fluid flow.
• Dual seals—dust, weather, and pressure—meet D.O.T. specifications, so you know they’re up to the task.
• The machined logo is hand-painted, giving it that personal touch.
• Uses a common 4-piston pad for easy replacements (P/N DR1), so you won’t be hunting for parts later.
• Comes in a silver powder coat finish, with custom colors available if you want to make it unique.
• Available for both front and rear, so you can get that matching look across your ride.
• It uses the correct banjo-style fittings—no pipe threads here, just quality all the way.
• And of course, it’s 100% MADE IN USA with materials sourced right here at home.

Products Fitment:

• Ford Mustang 1979-1984
• Ford Mustang GT 1985-1992

So if you're ready to take your braking game to the next level, the Baer SS4+ is definitely worth considering. It’s built for performance, designed to fit, and ready to hit the road.