Hi guys I am looking for some help. At the end of the month I plan to purchase the CST 6" lift kit for my 2014 Frontier Desert Runner. My aftermarket rims are Ion Alloy 179s 16"X8"+10 offset running 2 inch wheel adaptors. I have no clue what the back spacing is. Does anyone he know if they will rub the down tube on the spindle? I read some people are running the factory 16" rims with no problems. I am just a little confused. Any help would be appreciated!!!!!! Does the Factory rims have a + offset also?