Hi I have a 3 handle bathtub faucet brand Galtmaster. I have replaced hot and cold stems and seats but still have a drip from the faucet. I am trying to remove the diverter stem as well to see if that is the problem. I removed the bonnet nut but when I try to unscrew the stem it turns but will not come out. I can see the packing material but no apparent way to use a socket wrench. I also tried to temprarily reattach the handle to the stem to turn, but the stem just turns and does not come out.