Am I missing something here? I took the wheel locking nuts off of my 2007 before I traded it, and put them on my new 2013. They seem to fit just fine. So, how come the parts listing for this has a different number for 2012/2013? I'm not terribly mechanical, and am afraid there is some reason I shouldn't have done this, like they are too small, or don't tighten correctly. I did torque them to spec..