When you say back-and-forth kind of vibration I am assuming you are feeling it in the steering wheel and not the brake pedal. If this is the case then the rotors are probably not the problem. I am going to guess that you have some play in the steering wheel and you feel the brakes fighting you and motion is being felt in the steering. You MUST find and remove the source of the lost motion. It is usually one or both tie rod ends and/or the steering rack. You really have to check EVERYTHING in the front suspension, from the sway bar bushings to the frame to the ball joints. Get the steering tight and the brake problem will go away. In a Delorean the steering should have virtually no play or "lost motion". On one car I worked on one of the u-joints in the steering column was loose (the bolt was actually). After tightening it up all the play went away and the vibration too. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "Harold McElraft" <hmcelraft@...> wrote: > > If it wasn't doing it before it was stored (a long time?), you > probably have some brake pad stuck to the rotor. There is much > research out there that will tell you rotors rarely warp. Developing > run-out or thick and thin issues and contamination from the brake > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/