I am wondering if anybody else is having problems with thier 2004 f150 supercrew 4x4 fx4. My rear rotors have 2 grooves cut into them. Both rear rotors have the same grooves. The front rotors have a ripple effect. The dealer says it was from tire shine spray. I don't use it. So i picked up my vehicle quickly and headed home. Any insite will be helpful. Did i mention the truck only has 4200 miles on it.