If you're looking to beef up your braking game, the Baer 12" SS4 Rear Brake Kit might just be the upgrade you didn’t know you needed. This system is built around the S4 4-piston caliper, which is mounted to a solid 12-inch, one-piece rotor that's slotted, drilled, and zinc plated. Trust me, those features aren't just for looks—they’ll give you the stopping power you crave, whether you're tearing up the trails or cruising the streets.

The S4 caliper is no joke. It comes with D.O.T compliant dust and weather seals, so you know it’s ready to handle whatever Mother Nature throws at it. Plus, it’s compatible with popular brake pads like the DR1 or HB100, making replacements a breeze. One of the coolest things about this setup is Baer’s unique backing plate design. Not only does it serve as the caliper mount, but it also houses a modern one-piece park brake shoe assembly. That's right, you get a reliable parking brake without any extra hassle.

And let’s not forget about the stainless braided hoses included in the kit. They add a nice touch of durability and responsiveness to your braking system. This kit fits most 16-inch wheels or larger, so you won’t have to worry about clearance issues. Just make sure your rear end has the GM Small Pattern 10/12 bolt bearing on the axle with flush mount bearing housing ends (5x4.75", 5x5"BC) for a perfect fit.

Here’s the lowdown on what you’re getting:

• 2-piece, 4-piston S4 calipers, proudly made in Phoenix, AZ.
• CNC machined from US-sourced forged or billet aluminum—because quality matters.
• Powder-coated finish that not only looks good but stands up to the elements.
• Hard anodized aluminum pistons along with stainless steel abutments and noise suppression clips to keep things quiet.
• Dual seals for dust/weather protection and pressure management.
• A one-piece, slotted, drilled, and zinc-plated rotor that measures 12 inches in diameter.

Specifications at a glance:

• Axle: Rear
• Axle Flange: GM Small Pattern 10/12 Bolt with Flush Mount Bearing
• Brand: Baer Brakes
• Caliper: S4 in a striking Fire Red
• Piston Quantity: 4
• Caliper Type: Fixed
• Disc Brake Pad FMSI Number: DR1-C
• Rotor Construction: Vented, with an outside diameter of 12 inches
• Emission Code: 6
• Hose Material: Stainless Steel
• Includes Park Brake: Yes
• Lug Count: 5 Lug
• Minimum Wheel Diameter: 16 inches (make sure to verify with a template)
• Rotor Thickness: 1.020 inches
• Surface Type: Slotted, drilled, and zinc plated
• System Notes: Fits GM Small Pattern 10/12 Bolt Bearing on Axle Housing Ends with Flush Mount Bearing, 2.780" axle register

So, if you’re serious about performance and reliability, this Baer Brake Systems 12" SS4 Rear Brake Kit is worth a look. It’s designed for those who want to take their ride to the next level without cutting corners. Get ready to stop on a dime!