i guess the best bet is to find some local shop that has one and try it. or buy online and see if it fits, but make sure you can return it. Be careful with restocking fee. You will be out the shipping and handling though.
I was able to purchase the Westin Bull Bar for the Armada and have custom brackets made for the QX56 with minimal effort. Took the shop all of 3 hours to install. I personally like the way it turned out plus NO other on exists. Hope everyone agrees... Thank you for all those who tried to help.....Sincerely, Benton.