I Installed a 2-1/2" lift last year on my 2012 2-door I always thought the back was about an inch lower then the front. I contacted Rubicon Express and they asked for my coil lengths. 12-1/4"-12-1/2" in the front, 10-1/2" in the back. All I can find online is that the stock front dimensions are 9-3/8". So I got a 3" lift in the front. I think with these kits your supposed to get 2" in the back. I don't have any extra weight on the jeep other then 33" tires on back. Anyone know what the stock rear dimensions compressed are.