Hello to everyone i´m new and i have a doubt.I want to put P225 70 r 15 in front and P225 75 r15 on rear i speak to a guy in western auto and he say that it can´t be done cause if i put lower tires in front the ABS light will turn on indicating like is the car have flat tires.please is someone can help me I apreciate so much,hope answers !Ups!sorry almost forgot I have a 93 ford crown victoria LX,Thank you.