I run quads with my 9" cobra R's
they are turned around, they fit fine, but once again you have to use ford motorsports part quads to do it.
they have a thick part and a skinny part, the skinny part passes by the rim whenever it is turned around hence the added clearence..
if you have aftermarket shocks then this wont work, if you have aftermarket shocks then as bbunt said you'd be better of leaving them off and getting a high quality lower control arm as the quad only assists in wheel hop and the lower control arm will do that same thing.
if I could find a picture I would show you but I couldn't find one and my car is in another city ATM
most cars I see the owners replace all of the shocks and struts and leave the fatory quad's for the purposes of fitting the big rims.