I think most are mounted about 3 inches or so in front of the drain plug to one side. Not sure exactly on a 93 but this where I mounted one on a 95 model. Im surprised there is not already a puck of some sort already glued, if so just mount your new one about where the old one is just on the other side. Not sure on the side imaging, Ive never messed with those.Jason Ferbrache – Edmond, OK 1995 Basscat Eyra