Need a little help. How the hell do you get out the Brembo brake pads that have the aluminum pins on the back side out of the caliper without taking off the entire caliper? I can not push in the piston far enough for the pads to come out because of the pins on the back side the pads. Are the pins attached to the shim? Can I pry the shim and pad apart while they're still in the caliper?! I'm at a complete lose.