I did have to cut off 3/4" from the bottom of the antenna posts, maybe the HD ones for the light bars are shorter than the stand-alone antennas. Other than that they fit perfectly. Just a note though...don't use nylock nuts, if you have to remove the light bar the nuts will pull out the screw in studs in the light bar....ask me how I know this!!! No problem reinstalling them in the light bar though...just a small set back when I installed the antennas and had to remove the end nuts to install the reinforcing plates for the antenna corners, and had to remove the light bar instead of just the nuts.
2012 RGU Vivid Black
Too many options to list!!