I just put in the 2" OME lift on my 2001 wrangler sport auto.. Does anyone know if you must put on a transfer case drop? Also does anyone know if there are different size springs in this kit ? There were no instructions with it and I read somewhere that each spring in this kit is a different size and must be placed specifically. The only thing I noticed is that the back end sits quite a bit higher than the front but. Thanks for any info you guys may have.