Wilwood Aero4 Big Brake Kit for Late Model Trucks SUV Rear Axle 4-Piston

Wilwood Aero4 Big Brake Kit — Rear Axle for Late Model Trucks & SUVs (4-Piston) Upgrade rear braking power with the Wilwood Aero4 Big Brake Kit, engineered to replace factory rear discs on late model trucks and SUVs. This 4-piston rear axle kit maintains OE parking brake function, integrates with ABS and master cylinder output, and pairs with front Aero4 upgrades for a balanced, high-performance braking system. Key Features Aero4 4-piston calipers — increased clamping force and improved pedal feel for heavy-duty applications BP-10 compound pads — strong initial bite and consistent fade resistance under load Oversized rotors — higher thermal capacity and extended life during towing and repeated stops OE-compatible ABS and master cylinder integration for reliable system performance Retains original parking brake assembly for safe, legal operation Benefits Superior stopping power for towing, hauling, and high-GVW use Improved durability under repeated heavy braking and elevated temperatures Race-inspired styling that complements larger wheels and suspension upgrades Balanced front-to-rear brake bias when matched with Wilwood front kits Perfect for custom trucks, tow rigs, and performance SUVs, the Wilwood Aero4 Big Brake Kit delivers reliable, OE-compatible stopping power with durable components built for demanding road and trail conditions.