I've got two Wilwood brakes in the front of my civic. I've had them in there for almost two years and I'm still using the brake pads that came with them. Anyways, I noticed that whenever I apply my brakes slowly, my car starts to shake pretty bad, but when I apply the brakes fully, it doesn't shake. What could be causing the rumbling? I hope it isn't the rotors (they're drilled-slotted type). I was hoping that it could be the brake pads. Also, I noticed that after I washed my car, the shaking was a little less, but it still shakes. Anyone ever run into this problem??? I would appreciate your help.