Active Braking System (ABS)

[samneil2000]

My brother is an ASE certified Ford mechanic and they have no problems turning rotors. The thinner the rotor, the easier they are to warp though. Also, they have to still be within spec for the application (obviously). They can't file off so much material that the rotors are thinner than accepted for that vehicle.
My experience is that a lot of tire shops etc that mount wheels with impact wrenches are the reason rotors warp. Or by tightening down one lug all the way to spec without working them all down in a criss-cross pattern.

[rowhard]

Think the fronts need to be just to true them up with the hub

[Dmitrikr]

My brother is an ASE certified Ford mechanic and they have no problems turning rotors. The thinner the rotor, the easier they are to warp though. Also, they have to still be within spec for the application (obviously). They can't file off so much material that the rotors are thinner than accepted for that vehicle.
My experience is that a lot of tire shops etc that mount wheels with impact wrenches are the reason rotors warp. Or by tightening down one lug all the way to spec without working them all down in a criss-cross pattern.

Agreed. true. myself cert canadian mechanic. But, sometimes cheaper for cust to get new rotors then lathe the old ones.