LT tire upgrade Cougar 327RES

Thanks to everyone for the thoughtful advice. If I would have been totally on top of things, I would have replaced all 5 tires with LT's last year and been done with it. Now things are complicated in that we already had to replace 2 in January with what our roadside assistant had at the time (Sotera ST's) at 9:00 PM on the way home from a winter trip. Now we have to decide whether to just buy 3 ST's to get us by until we trade rigs or bite the bullet and buy 5 LT's. Time to do some serious thinking.

Thanks again to all!