They fit great. i have the Maxspeed springs, 1.75" front, 1.5" rear drop. 265/35 rear and 255/35 front tire. It rides about the same as with the 17's I had.
The front rub a bit at full lock, so you lose a tiny bit of turning radius, but its really not a big deal. The 275 DR should fit fine, but youll probalby have to flip your quad shocks and roll the fender lips a little.