I have a 2016 4runner SR5 and I ordered a Cornfed 3/2 spacer lift because I am only going for the cosmetic needs. The front spacers look great but the rear are different sizes from the drivers side to the passenger side. Cornfed told me this is to prevent sagging that can be exaggerated by lifting??? cannot say that I have heard of this! I installed a daystar lift on an 04 4runner and never had this...could someone clarify if this is standard practice before I install it? thanks RP