Wilwood TX6R Rear Kit 15.50in Black 2011-2015 GM Truck/SUV 2500 140-13874

Wilwood TX6R Rear Kit 15.50in Black 2011-2015 GM Truck/SUV 2500 140-13874

When your heavy‑duty GM truck or SUV needs rear braking that matches serious front upgrades, the Wilwood TX6R Rear Kit steps in with race‑grade hardware and real-world durability. This kit uses forged, radial‑mount TX6R six‑piston calipers and large 15.50‑inch rotors, engineered to deliver consistent stopping power and extreme‑duty performance under sustained heat. That combination is ideal for 2011–2015 GM 2500‑series trucks and SUVs running bigger wheels, tougher tires, tow loads, or aggressive driving.

The kit is a bolt-on solution designed to replace the factory rear discs, working as a high‑capacity complement to any front big‑brake upgrade. It includes the necessary radial‑mount caliper brackets and hardware for installation, with a note that some applications may require separately purchased braided stainless flex lines. That keeps the upgrade straightforward while ensuring the system stays tight and reliable under heavy use.

Beyond brute stopping force, the TX6R’s GT‑series alloy rotors and multi‑piston design provide excellent heat management and stable pedal feel even after repeated hard stops, which is exactly what’s needed on loaded or high‑speed runs. The black finish offers a stealthy, factory‑plus look that pairs well with lifted or custom wheels without drawing the flashy attention of brighter colors—perfect for trucks meant to perform first, show second.

Best use cases

• Tow or haul regularly with 2500‑class GM trucks or SUVs
• Pair with upgraded front big‑brake kits for balanced, balanced braking feel
  Heavy‑duty street driving, long descents, or high‑speed confidence on highway runs

Tradeoffs

• Premium pricing relative to stock or mid‑range upgrades, justified by true high‑heat capacity and multi‑piston hardware
• Larger hardware may require verification of wheel clearance or choice of wheel design on some builds

In short, this Wilwood TX6R Rear Kit gives GM 2500 owners a complete, performance‑ready rear braking solution that stands up to the heat, weight, and speed demands of serious trucks and SUVs.