So strange I am looking at the same things, and was just searching this I went to 37x13.5 and the Toyo fifth tire just won't fit, it rubs the tie rod at full flex. I am putting the steel spare underneath for road trips so that I can limp home if needed... I am doing a 5 tire rotation there is a thread on this already and too much flaming and not great answers...
With the stock spare being a 31.5" would that be something you could even run in an emergency with 35s? all around?
Yes, but just like the donut spare in a car, you want to go slow and not far.
Fair enough! Thanks for the input!
I run KO2 35s. I think I've finally concluded to put a fairly inexpensive similar size on my factor spare. I was at 4WP's the other day and I think we decided a Procomp AT Sport 315 70 17 could do the trick. They had them on sale for about $230, which probably ends today.
I also carry tire repair kit, but want a spare to temporarily get me somewhere if needed....I guess I don't appreciate the reason for a 5 wheel rotation and the 5th wheel and tire of same quality and expense as the others and it being underneath the truck and almost never used.
I've heard you get additional mileage but I wonder if that mileage justifies the cost of even using the 5th tire.
You'll increase your total mileage driven on a set of tires by ~25%, because you've added another tire into the mix. Whether it's worth it or not is a personal call.
Yep, I see, but I'm doubtful that I'm going to save move than my cost of $700 and I'll be replacing and tire or 2 before the mileage pay-off and the damage potential underneath concerns me, but I get it, especially if you carry in the bed or some other rack and only replacing tires from normal wear. Sorry - sounds like another thread for that debate. I'm going with cheaper 35" tire on my factory spare
