I have heard alot of people that really like the Michelin LTX M/S-2 tire. They are all season tires, good highway tread and last a long time. They are a bit pricey but you get what you pay for.I am planning on putting a set on my wifes Suburban in the next couple weeks and if they made them in 35-12.50 R18 i would put them on my SuperDuty.Hope this helps.