Has anybody EVER heard of a Dodge dealer tell you the correct way to turn rotors down was to leave the rotors on the axle while the truck is on the lift and attach the lathe and then proceed to cut... ..... my boss told me the dealer he bought his Ram from said that this is the correct way,how can this be,on or off the truck,a standard brake lathe should be capable of doing just as good of a job as this imaginery machine that they told him about. Even so,i've never heard of such a machine!!Have you?So are they for real??