Anybody know where to get a set of good trailer tow mirror extensions for a 93 2500?

 

I'm using a set of slip-on **** mirrors I got at Camping World. They work good especially when you wedge a bit of foam rubber in the gap between the case and the mirror (after you have it set) to damp out the vibrations. When you have the angle just right, and you're finally satisfied with the settings, you can then put a bead of silicone in the gap to set it.
I used to use McKesh mirrors, but by the time I had them out far enough to see behind the trailer, they would vibrate bad. The **** ones are much better, and you can take them on and off easily.

John

 

I ditto that, especially the silicon trick.