ok....when i hit the brakes there is a pulsation/vibration in the front end..its almost as if the abs were trying to come on but couldnt hold.....it doesnt happen everytime though....i replaced the rotors 6 weeks ago, and thinking something caused them to warp i replaced them again yesterday....still have the problem. i also replaced the wheel bearings in the front along with a tie rod end. no help, i rotated the tires , thinking it might be a bad tire...no help....i even took the fuse out of the abs to see if maybe that was the cause the the vibration,,didnt help...Is there anyone out there that has any clue as to what the problem could be? just to recap...2007 4x4 , 3.7ltr, 6 speed manual transmission