Most modern cars have disc brakes, which rely on fluid transfer or hydraulics to make them stop. The part that actually creates the pressure that moves the fluid is the brake pedal. Because a tremendous amount of pressure is need to complete this task, the average driver would have very tired legs were it not for the brake booster. This simple but ingenious invention uses vacuum from the engine to increase the force your foot applies when you depress the brake pedal. Like all automotive components, Jeep JT brake master cylinders and boosters can wear out, especially if you push them to the extreme. The most common sign of booster failure is a high pedal that requires a great amount of force to depress.
- 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Jeep Wrangler TJ
- Sahara, Sport, Rocky Mountain, Rubicon, Unlimited Wranglers
*Please see product pages for any exceptions.