Largest tire size 2018 Tahoe

[MLML]

I'm glad I went with the 265/65R18 on the AT3 4S. The tire profile and aggressive tread makes them look larger than the same size in a road tire. I almost went with the 70's but I think it may have rubbed a bit at the steering extremes. Probably good to stay around 32" in diameter without doing a level on the stock front end, with a 2" level you could probably go bigger.