I just got a new to me Expedition, 20,000 mi, and was looking to upgrade the stock scorpions 18's with a beefier tire. About 60% of my driving is on shale dirt roads ( read lots of sharp rocks ) I've had 2 flats in a week and a half, So my question has two parts:
1. Recommendations anyone has on a tire that has more than 6 ply that fits (heavy duty 18" tires seem hard to find)
2. or Can I change to a different size than the OE specs? 20in wheels or a different sidewall ratio or a wider tire? What kind of reprogramming is needed with a different size?
Thanks, other than the tires, don't get me wrong if I was only on pavement they'd be great, lovin' the rig.