front end trouble

I Have A 2000 R/t Just Turned Over 90000 Miles, The Trouble Is I Hear A Grinding Like Metal On Metal Sound When I Hit A Bump. Seems Worse When It's Cold, When You Run For A While It Is Less But Still There. Looked Under The Front End But See Nothing, I Don't Feel It In The Steering. I Had A Car With Bad Struts ,it Sounded More Like A Bad Spring Niose! I Just Need Some Ideas ,you All Helped In The Past Thanks Again

it could be bad struts or bushings, or even your ball joints are getting worn.