go to any large car store and they can get them. page 34 from here
http://www.berubes.com/. items 1250,60,70 any of these will do the job. you just have to figure out what length you will need. i put them on my 40 with the 4" round mirrors and the 5x7 mirrors for the firetruck. i also added blind spot mirrors on both also for extra viewing pleasure..
