my rear brakes are locking up on hard braking... my guess is that something is wrong... it's not too bad with light braking... but I was on the highway running about 70mph on the speedo (more like 85... if you ask the officer, who was kind enough to let me slide, says he made the same mistake in his Jeep 25 years ago)

anyways I had to hit the brakes REALLY fast and the rears locked up... it caused my rear end to start to spin/slide

it's almost like the fronts work perfectly but the rears do nothing until you are on them hard, then the grab full force... kinda like the rears are an on/off type setup, instead of a gradual thing

what could be causing this?