I ran 3" plus rides in the front and 4" in the rear on my 2 door, I have a very heavy steel rock hard 4x4 bumper/tire carrier so it kept it level with a smaller bumper/winch on the front. Overall was about 4in of lift, ran 35s- really loved the ride, was smooth and softer than any other springs ive had driven/rode- was very happy. Now that ive switched to a 4 door I will be installing 4 in coils in the front/rear and sticking with 35s for a bit until i get 37s. I think the 35s will look a bit small but will be good for now as itll site near the same as my 2 door. I will not be running a heavy bumper/tire carrier in the rear so it should sit fairly level. Though ride quality is subjective i think you will really enjoy the ride compared to your current set up. Im driving around a stock 4door rubicon right now and honestly think my 2 door with plush rides and rancho 9000XLs drove better so im excited to get he lift swapped over this weekend. if your driving a 4 door, For you id recommend the 4in as the jeep will sag a bit with all the weight but not as much as you'd think. when i had the 4in springs in the front of my 2 door its sat at like 5.5in in the front- was way to much!- probably cut fenders as well being these springs flex incredibly well but can get by with bump stop adjustments.