One other thing you might want to check is your caliper bolts.I had one come loose on me for some reason and when I applied the brakes it was making some grinding sounds.This was due to the calipers moving a little while the brakes were applied.I took the bolt out , put a little blue locktight on there and no problems like that since.

1996 Jeep Grand Cherokee 5.2 with mods.Hughes Air gap intake , 52MM TB , ford injectors, 2 3/4" lift, Doug Thorley headers , HID headlights with LED , HID fog lights , glow gauges , a few others