3.5" rough country series II lift...295/70/17 Nitto M/Ts...now it grinds like metal on metal around sweeping turns like exit ramps or cloverleafs...2008 Rubicon 2 door...any help would be appreciated...thought 1.25" wheel spacers would help but no they don't....help please!

 

is the heat shield near the exhaust loose?

 

Perhaps rear wheel bearings. Is it a low growling like noise that goes through the whole jeep??? I had that noise after I bent my axles and drove it for a while and eventually it will take out the rear wheel bearings and I would hear it when going like you said long sweeping corners.