What's your budget like? I have some Bridgestones in 265/75/16 that came from the factory on my old Silverado 1/2 ton that have roughly 10,000 miles on them that are really nice. They're slightly taller than what you have, but I'm confident they would fit your Suburban just fine. Only reason I took them off my truck when so soon after I bought it is because I put BFG All-Terrains on in their place. Let me know if you're interested.