Review on AntennaMastsRus Compatible Chevrolet Silverado 2006 2021 by Ken Desens

I had high hopes for this antenna. It looks great and appears to be well made. Unfortunately it cannot be installed on my 2021 GMC Sierra. The truck bolt is male threaded but also has a smaller unthreaded tip that is recessed into the female antenna base of the original antenna as the base is completely hollow. The internal threads of this antenna are sealed, and the unthreaded tip of the truck base enters the antenna before the threads even engage. It just won't install. By the way, judging by the description and the pictures, I thought that this antenna would be flexible. However, it's quite stiff and it doesn't look like it could even bend 45 degrees without breaking. I didn't have a chance to test it because I couldn't install it, but I'm skeptical. I have requested a refund and will return to this review pending the outcome.