Thats exactly what mine did too. I kept hearing a vibration/rattle in front of my XX. Turns out that is what is was. POS. I had mine fixed by a friend that has a metal shop. I still havent sent the pics to PA. Doesn't sound like they will do anything to make it right anyway. I like the nerfs, but they were a huge pain in the ass to install. Not exactly enamored with Pro Armor at this point. Apparently other manufacturers have had issues as well.Have had it since 5/7/09 with maybe 4 rides without hitting anything. Lower mount welds already broke.
Had to send pics and receipt. Hopefully they will do something.