Been running 285/75s on my 3rd gen 4Runner for about 5 years. It's our camping, local trail truck. Has Sonoran Steel 1.2A lift. The 3.4 is an awesome engine, but 3rd gens are slugs even in stock form. Add some heavy 285s and I just don't know about being a daily anymore. Again, I don't have to use that way. Maybe 7k miles a year now days. Has 226k on it. She's getting tired though and about due for new tires. Leaning to 265/75s this time. Rear diff is getting a little noisy, so may not be long til a new one. If I were to still run 285s I'd definitely do a regear at that time, but then have to add the expense of the front as well. And I run spacers on the front, which I hate, and could get rid of with 265s. 285s look great, but, the loss of fuel mileage, wear on the truck, expense of additional mods to regain power, (one mod always leads to another). Just not sure I'd go that route again.