When I was shopping for an RV, I noticed a few years after mine was built, Winnebago incorporated superior mirrors. Recently Motorhome magazine had an article about upgrading to the new ones so I decided to do it. The list price for the mirrors was about $500 but I got my pair for $250.
The old mirrors.
The new mirrors.
The part number to order is 713854.
Here is a link to order them for the $250 price.
New Velvac Mirrors
http://www.ryderfleetproducts.com/ryder/af/ryder/core/content/product/srm/key/U80%20713854/pn/Mirror-20-25-black-revolution-pair/erm/productDetail.do
They came complete with both right and left mirror and base. The only thing we had to buy was new screws. We used the old ones as a guide on what to buy.
The mirrors were well packed and appeared to come right from the factory. I had to order a roll of tape to get the price up to $250 so I could qualify for free shipping. :-)
The difference in visibility is huge! Not only can we now see if our steps are out but we have great visibility to the side and no blind spot that I could see. Well worth the money! I just have to get rid of the old mirrors. I'll probably post them on craig's list.