I lowered my Mach 1 with AM SR performance springs today. The drop is 1 1/2" (approx) according to AM. The guy at the dealership says I have to have camber plates before he would align it. My question is, what are your experiences with alignment after lowering springs? I know that they can help getting a car 'perfect' but I am questioning how close it can be without the plates? I am not trying to go cheap here just can't believe that it can't be at least close to spec without the plates.