ok what parts of the suspension would be damaged? would this stiffen the ride? maintain factory ride? when you lift the expo that much what is the max tire size you can fit under there?
Ball joints, CV axles, shocks etc. the suspension will be cranked to the absolute max if you went more than 3.5/2.5 level there would be no room for any down travel causing the parts to be wear out FAST. The factory will be basically maintained with a 3/2 or 3.5/2.5 (they're basically the same lift) and it might seem a tiny bit stiffer you're someone who extremely conscious of the ride feel but the average person would notice absolutely no change. The max size you can fit with minimal cutting is 35" tall 12.5" wide tires on 17" wheels... With no cutting, can should be able to fit most 315/70r17 A/T tires. The best option for the most suspension travel and easiest fit is probably a 33x12.5 tire on OEM backspacing spec wheels.
FYI: my setup is brand new shocks and springs with an eBay 3.5/2.5 level and soon-to-be 315/70r17 Goodyear Duratracs on 17" procomp 7032 wheels with -6mm offset... Should fit fine and only require minimal cutting.... When I get the setup together (hopefully soon) I'll be posting a small write-up of the trimming places and info about the lift and tires.. Hope this helps