Sorry all, I've had the answer to this question in the back of my jeep for several days now... Between working a county fair booth and a transmission cooler/temp guage upgrade in the xj I haven't had much time.
I picked up a set of universal towing mirrors that fit nicely to my 96 Country from Autozone. They have two straps that fit top and bottom of the stock mirrors, and three feet to mate to the backside. They have a tightening knob that ratchets the straps, and you can get them pretty tight.
"As seen on TV!" the box says...
Part number 11960 Black, fully adjustable, and they seem to be quite aerodynamic. They are 17"x5.25"
The box says "CIPA mirrors", and like most other things from Autozone, made in China.
Hope this helps!
Stubbs.
edit DUUUH!, I just realized the original post was in 2004!