I went to buy rear brake pads for my 93 cobra (Hawk) and they were not listed. Are the calipers/rotors the same as the 94 and up? Also, how do you get the piston back in the caliper to fit the new pads on? I have tried in the past, but was unsuccessful. I have been told by non-mustang drivers that you may need a special tool. Any help would be appreciated. How difficult is it to change front wheel bearings (inner/outer)?