I have the same after changing pads and discs upfront. I have taken everything off a couple of times again to see if I can find the problem. At the moment it looks like it might be tbe dustcovers touching but I am not 100% sure.
2003 Wrangler Sahara 4.0 42rle D30/D44
Front: 2" BDS coils + JKU shocks
Rear: 2" BB + Zone Nitro shocks
Zone 1.25" BL + 1" MML, UCF LoPro
32" BFG AT on 16" Racing Hart
Ramsey Pro Plus 6000, IPF 900s 130W