Need a set of rally mirrors for Duster

I have a reproduction Sport mirror,and the chrome and finish of it is flawless.
Actually was pleasantly surprised on how well it was built.
I have no problem putting these on a car,over a peppered set of old chrome Mopar mirrors.
As fars as the chrome goes,I've had no problems with it.
Maybe because my cars are garaged,and I don't 4x4 in the Applachian mountains ?