I put 1015s on the front of mine, and they work much better. Changing them was easy, no need to take anything apart. Loosen the screw (it can stay in the coupler), pull the box out from the back, slide the new one in (it takes some twisting to get the coupler and pin through the pilot), and put the screw back in. My 1015s were salvaged from something else, and had Philips head screws already in them, so I used those.