I have a 2006 Chevy 2500HD and a 2006 Thor Tahoe 22RK widelite. I was told by the guy that sold me the 5th wheel that using mirror extinction was no use. That it gave no extra view of your trailer. Is...
I bought the ones that slide over the existing mirrors and yes they do help. I can see at least part of the vehicle behind me. I wouldn't tow without some kind of extended mirror.