I just got an 89 iroc recently w/ a 3.70 9 bolt rear, PBR set up, and there's new pads on the back. Went to the emissions test and found out I have no rear brakes. I can see that the new pads aren't even touching the rotors. The master cylinder has stayed topped off, and I also noticed that after driving, the master cylinder was really hot. Is this normal? I don't see any leaks anywhere. This also isn't the stock rear end that the car came with, it originally came w/ a 9 bolt PBR disc, 2.77, pretty much the same set up. So what should I look at?