I spoke with the suspension guy from Jeep at Easter Jeep Safari this year......he stated that they are valved to identical values but are longer with a greater diameter on the suspension lift kit
Use this link.....but put in your own vin where the xxxxxx are
https://www.jeep.com/hostd/windowsticker/getWindowStickerPdf.do?_ga=2.158932026.1493433193.1568459496-1307127043.1568459496&vin=xxxxxxxxxxxxxxxxxx
Agreed with what the above says. Do some looking on this forum in this section....there are numerous conversations already discussing best prices possible /prices paid/ how they got it/ who they ordered through. Enjoy the research.....it will.pay dividends