the ringing noise is when im cruising not at a dead stop.. i had the fluids changed in the stang. gear fluid and tranny fluid. when the cover was off for the gears at my mech. his tranny guy was there and had a look at it. he said one of the gear rings are slightly worn. he said thats probably the cause of the ringing noise im getting. nothing wrong with it though. does that sound right to any of u? if it does if i get new gears not saying i would but would it go away? its an 04 gt 5spd with frpp 410s.