That sounds about right. I've got 245/60/14 on the rear. Blasted 14" rims! lol But I don't care. I don't take long trips (60-90 minutes) more than a couple times or so a year. So I am TOTALLY cool with the 3.91s. Waaaay more fun to drive! It's cool that when I'm doing 60 and I stand on it, it still pushes you back in the seat! Too cool!