2001 Chrysler Grand Voyager noise from front end

My van keeps making a rubbing grinding grinding type of noise in the front end it seems to drive and steer fine, I took it to a shop and the mechanic said it was just the rack and pinon steering he said this was normal for this van he assured me everything was fine and safe, he said I would be wasting my money to replace it because in about a year it would be doing it again does this sound right?