Yes, you want quad shocks. Just install them backwards so you have extra room, if you really want to save a little more space sn95 quads seem to be a tad bit thinner, and will fit fine.
I have 275/40/17 Nitto drag radials in back on 01 GT wheels with no problems. Granted I don't have tail pipes, but they fit fine. I also have drums so my axles are recessed in more than if you have rear disk. I run 245/45/17s up front with no problems at all.