On my 96, 2500, 2WD I have 2. 5" DayStar spacers, FabTech upper control arms and FabTech 3-stage adjustable shocks. On 2WD IFS it becomes a problem if you use a spacer bigger than 1. 5", the stock shocks become all most fully extended and the ball joints end-up in a bad angle which in turn gives you a real hard bumpy ride. 1. 5" spacers will level the truck, you actually get about a 2. 5" lift out of the spacers. With my combo I now have 3. 75" of lift and no problems with getting it align. My bigger wheels, 18X9. 5 with the same back space as stock, did make it wonder just a little bit, with the stock wheels it goes straight. The ride feels the same as stock when the shocks are set to #2 stage, but to hard on #3 stage, have not tried #1 stage but will soon. Handling wise its the same with the stock wheels and tire size but with my my bigger and wider wheel and tire combo it handles great, specially when going around tight turns.
Pablo