While my brother is doing his tour of duty in the land of not quite right, his wonderful wife appears to have pretty much destroyed the driver side mirror on his truck. It still works, but the plastic housing is half gone. I have looked around and can find complete sets but have not been able to find a source to just buy the driver side. Any thoughts?

Did you try contacting them directly? Their website says they carry replacemnt parts. www.powervisionmirrors.com