If you're looking to upgrade your braking game, this rear brake system is a solid choice. It packs a punch with the S4 4-piston caliper, all mounted to a beefy 13-inch two-piece rotor that's not just any rotor—it's slot and drilled, and zinc plated to boot. You’ll appreciate the attention to detail here; Baer includes stainless steel brake hoses and calipers that come equipped with D.O.T. compliant dust and weather seals. You know, the kind that keeps everything running smoothly no matter what Mother Nature throws your way.

One of the standout features is the quality bearings and NAS high-grade stainless hardware used in the pre-assembled two-piece rotor. It’s designed for those of us who want the performance of Baer’s larger systems but in a compact package that fits snugly under 17-inch wheels. Plus, it comes with park brake cables, so you’re not scrambling to find what you need to complete the job.

Fitment:

• This system is tailored for 1971-1976 GM full-size cars with the standard GM 10 Bolt and 12 Bolt rear ends.

Why Go for the SS4+?

• It delivers all the benefits of Baer's bigger brake systems but in a size that works with your 17-inch wheels.
• Great for anyone wanting to keep those 17-inch wheels or for the enthusiast who might want to swap to larger wheels while having the option to revert to stock.
• Everything is included—hoses, fittings, and park brake cables, so you can dive right into the install.
• It features a 6061 T-6 billet aluminum hat that’s anodized black and securely bolted to the rotor.
• High-grade U281 fine thread stainless hardware with captured nuts ensures durability and ease of installation.

What’s Cool About the S4 Caliper?

• It’s got four 10mm cross bolts that provide maximum stiffness, which is crucial for performance.
• Stainless steel abutments and noise suppression springs keep things quiet and smooth.
• Those hard anodized aluminum pistons? They’re tough and designed to last.
• The internal crossover design is clever, making for better fluid dynamics.
• With dual seals that meet D.O.T. specs—dust, weather, and pressure—you can trust these calipers to hold up.
• Each caliper features a machined logo that’s hand-painted, adding a personal touch.
• It uses a common 4-piston pad for easy replacements (P/N DR1), so you won't be searching high and low for parts.
• And let’s not forget the silver powder coat finish; custom colors are available if you want something unique.
• Want to keep that aesthetic consistent? You can get these for the front or rear of your ride.
• Baer sticks to the good stuff, using correct banjo-style fittings instead of pipe threads.
• And it’s proudly 100% MADE IN USA with materials sourced right here at home.

Products Fitment:

• Chevrolet Caprice 1971-1976
• Chevrolet Impala 1971-1976

So if you're ready to take your braking system up a notch, the 4302479S Baer Brakes Brake System 13 Inch Rear SS4+ with Park Brake is definitely worth considering. It’s built for performance and reliability, and it just might be the upgrade your ride has been waiting for.