Brake Rotor Set (Rear; Drilled & Slotted) KJ & TJ (RT31005)

The Brake Rotor Set (Rear; Drilled & Slotted) KJ & TJ (RT31005) is a

performance‑oriented upgrade designed to hreplace the rear stock rotors on Jeep Liberty

(KJ) and Jeep Wrangler (TJ) models equipped with rear disc brakes. Unlike standard

solid rotors, this set features drilled holes and precision‑machined slots, which

enhance cooling, improve water and gas evacuation, and boost overall braking performance

under demanding driving conditions. Such enhancements are especially beneficial for drivers who tow, haul, drive aggressively, or take their vehicles off‑road.

Drilled and slotted rotors work on severalh performance principles. The drilled holes

provide additional airflow and help dissipate heat more rapidly than standard rotors. This

faster cooling reduces the risk of brake fade during repeated or heavy braking—an advantage

on steep descents, towing runs, or high‑speed driving. The holes also help vent micro‑gases

that can form between the pad and rotor surface under extreme friction, improving contact and consistency.

The slots, on the other hand, serve to clean the brake pad surface as it contacts the rotor.

When the pads and rotors come together, small particles, dust, or gas residue can build up on

the friction interface. Slots channel these particles away from the contact area, helping

maintain full pad engagement and improving bite or initial stopping response. They also

reduce glazing on pad surfaces, which can otherwise lead to noise or reduced braking efficiency over time.

Manufactured to fit directly as a rear

Manufactured to fit directly as a rear rotor replacement for Jeep KJ and TJ vehicles, the

RT31005 set ensures precise fitment, correct bolt pattern, and proper thickness for seamless

integration with existing brake components. The set is typically sold as two rotors (left and

right), making it ideal for complete rear brake upgrades rather than one‑side replacements.

Construction is generally from high‑grade cast iron that balances strength, heat tolerance,

and durability. Some performance sets also include anti‑rust coatings on non‑friction surfaces

to slow corrosion and extend service life in harsh environments. Proper machining tolerances

help maintain flat surfaces and reduce run‑out, minimizing vibration and uneven wear.

Installation of drilled and slotted rotors mirrors that of standard rotors: removing the rear wheel, brake caliper, and old rotor, then mounting the new rotor with proper torque specifications. After installation, inspecting pads, hardware, and wheel bearings ensures the entire system operates smoothly.

Drivers often choose drilled and slotted rotors like the RT31005 to achieve better brake feel,

improved heat management, and a more aggressive aesthetic. However, it’s

important to pair these rotors with quality brake pads suited to the vehicle’s use—whether

DOT‑rated street pads for daily driving or performance pads for towing and spirited use.

In summary, the Brake Rotor Set (Rear; Drilled & Slotted) KJ & TJ (RT31005) provides enhanced braking performance, improved heat dissipation, and superior pad engagement compared with standard rear rotors. Its direct‑fit design, durable construction, and performance‑oriented features make it a solid upgrade for Jeep Liberty and Wrangler owners seeking improved braking under a variety of driving conditions.