New to the forum, and have found tons of info through searching but have not come up with anything on this particular issue. Under heavy braking and braking over bumps I have a binding/grinding sound coming from what seems to be the front end. Light braking and normal driving its quiet and normal. I have replaced the following: both hub/bearing assemblies, both axle u-joints, both rotors and ceramic pads. After further inspection I realized the steering knuckle is worn down were the brake pads slide back and forth. Would this cause the noise I am experiencing? Thanks for any info.

 

bump, I think I have the same problem... squeaking/grinding quiets for a second when I turn the wheel in either direction, then starts again.

 

Same issue and I have ceramic pads too. Found a small pit on the passenger side knuckle, inboard pad, upper slide. I think it prevents proper return of the pad/piston after lifting off brake pedal, hence I get occasional squeal and the sensation of dragging a brake. Now I'm curious if I caused this because I sometimes "brake dance", where you repeatedly bop your brake pedal to the rhythm of the music making the whole Jeep dance, and I think it hammered the pit into the slide...

 

I used a 4 1/2" angle grinder to smooth out the low spots on my knuckles/pad slide area.
westvalleyxj I am not sure it that will help your issue but it may, the pads might get stuck in the pit/slot and contact the rotor unevenly.

gspaceunit, you may need to install anti-rattle clips if the noise goes away when you lightly press the brake pedal.
http://www.jeepforum.com/forum/f12/h...rakes-1072443/

 

Thanks for the replies, but I put my lift on and and it went away. Now on to other problems that I must move on too. Thanks again.