Ok, that makes sense for the rears, the 8.25's are narrower than the 8 3/4's by almost a half an inch, and I'm sure the ride height takes care of the rest.
In the front you should be looking for a 15x7" with 4.25" or at least 4" of backspace. Even the 195's on those rims will be all the way out at the fender lips. They might work, but like I said they're pretty much at the limit. They'd sit just as far out as my 275/35/18's on the front of my car, and I had to do a few little things to get mine to clear. The height is super short, if you have to run those rims I'd at least be looking for a 195/65/15, which would be 25" tall.
