If you're looking to upgrade your rear brakes, the Baer SS4 system is a solid choice that I can personally vouch for. This setup features a beefy S4 4-piston caliper paired with a 12-inch one-piece rotor that's not just slotted and drilled, but also zinc plated for that extra layer of protection. What really stands out is the unique billet backing plate. It’s not just a pretty face; it mounts the caliper and houses the Banksia one-piece park brake shoe, which is a huge step up from the usual drum-in-hat systems. Trust me, this modern design works way better, making it a reliable option for anyone serious about their ride. Just a heads up, this is a General Fit Rear system, so you’ll need to grab your park brake cables separately.
Fitment:

• Ideal for stock 9-inch Ford with small bearings or 8-inch Ford with standard bearing housing.
• Comes with a 5x5.000 inch wheel bolt pattern, so check your wheels!

Why go for the SS4?

• The 12-inch rotor is directionally vaned, which helps with cooling and performance.
• It pairs perfectly with Baer's Track4 front brake system, giving you a matched setup.
• The fully machined billet backing plate isn’t just for looks; it also integrates the Banksia park brake assembly seamlessly.
• Speaking of the park brake, it’s a modern take on the classic drum-in-hat, using the same shoe as the late model Corvette C5/C6. So, you know it’s got the pedigree.
• Everything you need is included—hoses, fittings, and hardware—so you won’t be hunting for parts.
• These 12-inch rotors fit some 15-inch and most 16-inch wheels, but it’s smart to verify with a template.

The S4 Caliper Features:

• Stiffness is key, and with 4 10mm cross bolts, this caliper delivers.
• Stainless steel abutments and noise suppression springs keep things quiet and smooth.
• Hard anodized aluminum pistons ensure durability and performance.
• It’s got an internal crossover design that’s engineered for efficiency.
• Dual seals meet D.O.T. specs for dust, weather, and pressure, so you know it's built to last.
• Each caliper features a machined logo that’s hand-painted—just a nice touch that shows attention to detail.
• When it comes time for replacements, you can easily find a common 4-piston pad (P/N DR1).
• The black powder coat finish looks sharp, and you can choose from standard colors like red, black, or silver; custom colors are also an option.
• Available for both front and rear, so you can keep that aesthetic consistent.
• For rear systems, you get a drum-in-hat park brake, which is a nice feature.
• If you have c-clip style axles, the Baer Verislide self-centering brackets are included to make installation a breeze.
• They use the right banjo style fittings—no pipe threads here, just solid engineering.
• And the best part? This system is 100% MADE IN USA, using materials sourced right here at home!

In short, if you want a rear brake system that’s built for performance and reliability, the Baer SS4 is worth every penny.