I took off the retaining clip for the rear caliper. The center two piece portion moves around a lot and allows the pad to be moved by over an inch. I believe it would be easier to just take off the bolts holding the piston/pad inner while leaving the outer bracket secured. I could not get enough leverage with a typical allen key. I will have to look for a better tool.
Has anyone done this like described above? This would appear to be very similar to the E36/46 calipers. Is there a torque spec for the 7mm alen bolts?