A torque wrench has a guage on it tell you how hard your turning the bolt. The torque spec for the lugs was originally 65 ft-lbs. but was later changed to like 80-85 ft-lbs. That would be like setting a 85 lb. weight on a 1 ft. long wrench until the bolt stopped tightening. Correcting the torque setting may help, but warped rotor damage may already be done.
