Not meaning to be a D-bag but you should check out the lifted/tire stickey. I'm in the same boat as you. I just bought the daystar 2.5/1.5 kit and the stickey will show you what the T4R will look like with the lift and different tire combos. I have 18"s and its lookin like a 265/65r18 or 275/65r18. I'm trying to find some 16" SR5 wheels and its probably a 275/70r16 or 32x10.5. The Daystar kit allows for up to a 32" tire. Good luck and post pics when you get it done. I'm installing mine this saturday, but I dont have the money for tires yet.