Cadillac Repair: Brake repair for a 98 Deville, bolt head, rear brakes

Question
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thank you. I know all of this, but there is a cable that is connected to the caliper that appears to be keeping me from pushing it all the way up.I loosend the bolt at the bottom of the caliper but I still can't totally clear the rotor. and that special tool that I need for the caliper, what is it called? can I purchase it from a retail outlet?
Followup To
Question -
How do you replace the rear brakes on a 98 deville. I cannot get the caliber off.
Answer -
Hi Baron, At the bottom of the caliper there is a 12mm bolt head? that needs to be removed. Then the caliper pivots up and once it is clear of the rotor then it will slide off the pin by pushing it away from the rotor. Then you can change the pads. I believe there is a special toool that is needed to turn the piston into its bore by turning it clockwise. Once the piston is almost turned into the caliper then the pads can be installed and caliper put back on the pin and bolt tightened. GM has said that they don't want to have the rotors machined unles there is a brake pedal pusation or in the case of rear brakes a rumble when braking comming from the rear. They only allow 1 machineing if the rotor isn't too bad. Otherwise it would be ok to just put the pads on or just replace the rotors...your call. If you do need to replace the rotor then the caliper bracket uses 2 18mm bolt heads. Then useing a torque wrench to install everything to the correct tightness is a good idea. Hope that helps. If not then you should have the brakes replaces by a shop so you don't have a accident due to incorrest procedures. If you like to do minor repairs then sounds like you would be aa good candidate for the auto maintenance classes that are given at the local junior college level. Hope that helps. Bill  

Answer
Hi Baron, About that cable there is a bolt that needs to be removed on top of the caliper and then the cable can be moved out of the way. You might need to pry the cable away with a flatblade screwdriver in order to get the socket on the bolthead. The piston retracting tool is sometimes a loaner tool. You will need to check with your parts store or auto zone if there is one near you and not have to buy it. The easiest one to use is the long bolt going through a plate with a disc that fits on the end. Otherwise the most common one is a cube that is used with a 3/8" ratchet. That should get the job done. Bill