Durb,
You sound much more knowledgeable than I am about tires. At the moment I'm confused.
You said:
XPS Ribs are fine tires but they are LT tires and only come in 85 aspect ratio as opposed to the 80 series tires you are most likely replacing. The 235/85R16 have a diameter of 32" whereas the 235/80R16 tires you are most likely replacing would average 30.8". Just make sure you have an extra half inch of top clearance to spare to your wheel well and an extra inch between the tires.
1. What brand of tire are you talking about?
2. Are LT tires somehow insufficient? In what way?
3. What specifically do you mean by 85 aspect ratio? As opposed to what?
4. What is the 80 series that you think I am replacing? What is unique about that tire?
5. Are you advocating the 235/85R16 with the diameter of 32"?
6. So you are advocating a tire that has a larger diameter than what you think I have now?
7. Sorry for so many questions. I appreciate your knowledge. I'm just trying to really understand what we are saying here. Thanks.