To disconect the cable on a new non stretched rear brake cable setup on at least my Kona AWD, you need to undo all the locating holders I stated in the previous post. That only takes 4 minutes. I had to do this when I pulled my rear swing arms when installing my Veloster N bushings. I should be putting rear pads on my car in the next 2 weeks, so I will be person # 2 to try to see if we can pull the rear caliper away from the rotor.It helps if you disconnect the Cable from the Caliper first. Takes tension off the cable. I worked as an Auto Tech. Had to replace the rear rotors on a (Forget year) Tucson. Had to unbolt the shock. And disconnect one of the arms back there. Just to get the Caliper Mounting bolt out. It was an AWD model.
I installed my rear brake pads and you do not need to unattach the cable in any way. You do have to muscle it off and you do need to get/buy/rent free at auto parts store ( I made mine) the tool to spin the rear caliper piston back into the caliper IF you are added new brake pads. OR you can get one of these "cubes" at an auto parts store where you use a 3/8 socket ratchet with an extension to push and spin at the same time. This is you cheapest and easiest route to go, but many say they can be hard to use on brand new calipers and very old rusted calipers. Also I don't know if it fits the Hyundai grove pattern. Front calipers all you need is a C clamp because the piston can be pushed straight in with out the need to be spinning while pushing in.
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