Alright, let’s talk brakes. If you’re rolling a 1991-1993 Saleen Fox Body Mustang with 5-lug wheels, the SS4 rear brake system is a solid upgrade you should consider. This setup features a beefy 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 durability. It’s designed to handle the heat and keep things cool when you’re pushing your ride.

One of the standout features here is the billet backing plate. This isn’t just some random piece of metal; it doubles as a caliper mount and houses the Banksia 1-piece park brake assembly. This modern design is way better than the old drum-in-hat systems you usually see. Plus, it uses the same shoe as the late model Corvette C5/C6, so you know it’s got some pedigree.

Now, keep in mind, this is a General Fit Rear system, and you’ll need to grab your park brake cables separately. But don’t worry, it comes complete with stainless steel brake hoses and all the necessary fittings and hardware to get you set up right. The 12-inch rotors are versatile too—they can fit some 15-inch wheels and most 16-inch wheels, but it’s always a good idea to check with a template just to be sure.

Why go for the SS4?

• A 1-piece 12-inch rotor with directional vanes for better cooling.
• Pairs perfectly with the Track4 front brake system if you’re looking to upgrade all around.
• That fully machined billet backing plate? It’s not just for looks; it’s built to last.
• Modern park brake design that’s way more efficient than what you’d find in older systems.
• Comes with everything you need—hoses, fittings, and hardware included.
• 12-inch rotors are a snug fit for some 15-inch and most 16-inch wheels—just double-check with a template.

Let’s break down the S4 caliper:

• Sturdy 4 10mm cross bolts for maximum stiffness—no flexing here.
• Stainless steel abutments and noise suppression springs to keep things quiet.
• Hard anodized aluminum pistons that are built to last.
• Internal crossover design for efficient fluid flow.
• Dual seals that meet D.O.T. specs to keep the dirt and moisture out.
• Each caliper has a machined logo that’s hand-painted for that extra touch.
• Uses a common 4-piston pad (P/N DR1) for easy replacements—no hunting around for parts.
• Available in a sleek silver powder coat finish, with red and black as standard options, plus custom colors if you want to get fancy.
• Both front and rear options are available for that consistent look.
• Rear systems come with a drum-in-hat park brake for added convenience.
• For c-clip style axles, you’ll get Baer’s Verislide self-centering brackets—no more hassle.
• Uses the right banjo-style fittings—no pipe threads here, just clean and simple.
• And the best part? It’s 100% MADE IN USA with materials sourced right here at home!

So if you’re looking to upgrade your braking system, this SS4 setup for your Fox Body Mustang is a no-brainer. It’s rugged, reliable, and designed to elevate your driving experience without breaking the bank.