Originally Posted by 07EXPYEL

I've got about 27K miles and had a flat last week, so I'm riding on the spare. My current tires are the 18" Pirellis which seem to be the second least puncture reistant tires, contenentils being #1.

My 4X4 EL is anything but a light weight vehicle, especially when I'm towing my 31' travel trailer (weighing in at 13,000 CGVW). The stock tires were "P" tires, or "Passenger car Tires", which from what I understand might be a bit underrated for this vehicle, not to mention they are more likely to puncture.

My question is, is it worthwhile to upgrade to a "LT" or light truck tire? I know the cost a bit more, the ride might be a bit rougher and noiser, but I'm really sick of flat tires! I don't off road much, but when I'm on dirt roads, I would like to have some puncture resistance from rocks, branches, etc..

I'd like to hear what other's opinions are and if there's an alternate size to the P255/70/R18's that came stock and are kind of an odd size.