I am having a heck of a time removing the rear rotors on my 2007 4runner. I have one rotor "freed" by using 8x1.25mm bolts to press it off. However, it will not come completely off. There appears to be something inside the rotor still "stuck". I have read about backing down the ebrake, but cannot find any such adjustment looking through the hols on the front of the rotor and rotating it all the way around. Any suggestions?