Review on CIPA 11902 Custom Passenger Towing by Nick Griffith

I bought this mirror for my Super Duty while towing my badge on a 1200 mile RV. They gave me the correct view, but the new mirror vibrated even at idle, making it difficult to see inside. It's tolerable but hoped it would be better. I used a hose clamp on the post in the mirror housing to make it stiffer, it helped but isn't perfect. I urgently need a booster.