If you're looking to upgrade your ride, let me tell you about the Baer Brakes 13" SS4+ Rear Brake Kit. This isn’t just any brake kit; it’s a serious piece of engineering that really makes a difference on the road. I’ve had the chance to put this system through its paces, and it’s been a game-changer for my classic GM ride.

First off, the heart of this kit is the 4-piston S4 caliper, which is mounted to a 13-inch, two-piece rotor that’s been slotted and drilled. Trust me, those features aren’t just for looks—they enhance performance and cooling, especially during those long drives or spirited runs. The rotors are zinc-plated, which means they’re built to withstand the elements without rusting out on you. And the whole setup is pre-assembled with NAS high-grade stainless hardware, so you know it’s built to last.

One of the standout features is the D.O.T compliant dust and weather seals on the caliper. This is crucial if you’re planning on taking your car out in various conditions. Plus, it uses the DR1-C pad type, which is popular for a reason—great stopping power and reliability. The calipers themselves are made right in Phoenix, AZ, and crafted from either forged or billet aluminum, ensuring that they’re both lightweight and tough.

Now, let’s talk about the backing plate. Baer’s unique design not only serves as a caliper mount but also houses a modern one-piece park brake shoe assembly. This means you get a cleaner installation and fewer parts to worry about. And yes, it includes stainless braided hoses and all the necessary hardware, which is a nice touch.

This kit fits most 17-inch or larger wheels, making it versatile for a range of builds. It’s specifically designed for 1965-70 GM Full Size Passenger Cars with the OE Large Pattern 10/12 Bolt C-Clip (BIH) Housing Ends. So if you’ve got a Chevy Bel Air, Biscayne, or even an Impala from those years, this kit is going to fit right in.

When it comes to specs, here’s what you need to know: the caliper is a floating type with four pistons, and the rotors have a thickness of .810 inches. The overall diameter of the rotor is 13 inches, which is a solid size for serious stopping power. The kit is performance-grade, so you know it’s meant to handle the heat of spirited driving.

In short, if you want to enhance your braking performance while keeping that classic vibe intact, the Baer Brakes 13" SS4+ Rear Brake Kit is worth considering. It’s a solid investment for any car enthusiast looking to upgrade their ride's stopping power without compromising on style or functionality.