Jeep Wrangler JK / JK Unlimited 2007-2011, Brake Master Cylinder Kit by TeraFlex®. With Oversized Bore. Includes: Brake Master Cylinder Box, Sell 4303450 Brake Master Cylinder with Oversized Bore. Upgrade your Jeep's brakes with a kit from TeraFlex. Larger-diameter wheels and tires mean your brakes have to work harder, so you should upgrade just to maintain your original braking ability. Add weight from a bunch of gear, armor and modified parts, and a long downhill could leave you without enough braking.
Notes: Specific steps must be taken when bleeding the brake system, a bench bleed is recommended before installing the master cylinder into the Jeep. Slowly pump the pedal during the bleed process to avoid seal damage.
TeraFlex has been professionally involved with Jeeps since the 1950s and that experience taught them how to make them perform their best. TeraFlex was started in the fall of 1996 to meet the needs of the growing market for heavy duty off road equipment and suspension enhancements. And they've maintained a dominant hold on the market since then. TeraFlex was the first aftermarket manufacturer with a suspension system for the TJ Wrangler, and is still the only aftermarket company to offer a solution for the venerable 231 transfer cases low range gearing. In 2001, the entire off road industry was stunned at the CRD60 - an off-road-specific high-pinion 60 differential that took innovation to a new level, reinforcing their position in the industry.