So I need order 1.75in wheel spacer for rancho lift and stock wheels, I found some thread record Motorsport tech spacer through search but I couldn't find specific one for hummer, I guess Chevy works , I found two version for the Chevy 6x5.5 pattern , one is 14mm X1.5 stud and another one is 12mm X1.5 which one should I choose ?