Rear Caliper Stuck to Bracket
 

Hello all. I am replacing my pads and rotors all the way around and I was able to get both front and the right rear done, but for some reason the left rear caliper will not slide off of the bracket. I've got the bottom bolt off of the caliper and the bracket was able to come off of the hub just fine. Is there a trick or a special tool to get the caliper off of the caliper bracket when it is stuck? I thought about smacking it with something but I'm afraid that will break something or mess up the caliper or bracket.