Carryon Bag Dimensions.

I have a 'carry-on' bag with outside dimensions of 22" x 15" x 8".  The wheels on the outside with tabs so it won't fall over measure 1&1/2", and there is a handle.Will the wheels and handle cause this bag to not allowed to be carried on the plane? I know I have to pay for the carryon, I just need to know if I'll be stopped because of the wheel equalizers and the handle on the outside. I called and waited 30 minutes, but the representative gave me first a yes and then a no answer. My schedule is extremely tight to make it to my son's bootcamp graduation. May I please get a straight answer? This was sold as an American Tourister carryon bag. Thank you.