I don't know. I bought the calmini shackle kit and then decided that 1.5" of lift isn't going to benefit me enough to risk changing anything underneath. That's just me though. I've been to quite a few 4x4 shops here in NJ who said they would do it w/ no problem. I'm sure I'll get flamed for this but the way I see it is..the X is plenty capable off road the stock height..why risk breaking anything for 1.5" of lift?