If you're looking to upgrade your ride's braking system, the Baer SS4 rear brake setup is a solid choice. This system comes with a beefy S4 4-piston caliper that’s mounted to a robust 12-inch one-piece rotor. The rotor is not just any rotor; it’s drilled and zinc plated, which means it’s built to withstand the elements and keep performing when you need it most. What really sets this apart is the unique billet backing plate—it’s not just a caliper mount but also houses the Banksia one-piece park shoe. Trust me, this is a significant upgrade over the traditional drum-in-hat park brake systems you often see. It’s more efficient and modern, making your parking experience a whole lot smoother.

Now, let’s talk fitment. This system is designed for Buick, Olds, and Pontiac 10 Bolt and 12 Bolt non-C-clip rears with bearing-on-axle ends. It also fits hybrid 3.150-inch bearing-on-axle ends, which is pretty handy. Just a heads up though, it doesn’t come with park brake cables, so you’ll need to grab those separately.

So, why should you consider the SS4? For starters, it features a one-piece 12-inch directionally vaned rotor, which is perfect if you’re pairing it with the Track4 front brake system. The fully machined billet backing plate isn’t just for show; it holds the Banksia park brake assembly securely. Speaking of the park brake, it’s designed using the same shoe as the late model Corvette C5/C6, which means you’re getting something that’s tried and tested.

When you order this system, you’ll get all the hoses, fittings, and hardware you need to get started. Plus, those 12-inch rotors are compatible with some 15-inch and most 16-inch wheels, but it’s always a good idea to verify with a template before you commit.

Now, let’s dive into the S4 caliper features. It boasts four 10mm cross bolts for maximum stiffness, stainless steel abutments, and noise suppression springs to keep things quiet. The hard-anodized aluminum pistons are built to last, and the internal crossover design enhances performance. You’ll also appreciate the dual seals that meet D.O.T. specifications for dust, weather, and pressure. And yes, the logo is machined and hand-painted, which adds a nice touch of craftsmanship.

One of the best parts? The caliper uses a common 4-piston pad for easy replacements, so you won’t be hunting down obscure parts when it’s time to swap them out. The standard colors are red, black, or silver, but if you’re feeling adventurous, custom colors are available too. And if you want that cohesive look, you can get these calipers for both the front and rear.

Lastly, I’ve got to mention that this system is 100% made in the USA with materials sourced right here. If you’re serious about your ride and want a brake system that’s going to perform reliably, the Baer SS4 is definitely worth considering.