grand prix brake shudder
99 grand prix gt. front end shudder when using brakes. seems very pronounced. I know brake vibration is fairly common on GM cars. i have done many brake jobs and know putting on a new set of rotors is easy/quick. not much $$ either. less than having a shop even look at the car would cost. dogbones or engine torque straps look ok. no obvious bushing distortion. no vibration on acceleration. axle shafts/cv joints are ok? put car in gear and have someone observe motor movement? any ideas?