Water pump pulley?

I have a 1986 Dodge Ram 50 with a 2.6L engine, and I am looking for a water pump pulley. Anybody have any idea where I can find one, or one from another vehicle that will fit? None of the auto parts stores eem to carry them, and even factorychryslerparts.com lists one and gives a price, but says it's unavailable! Any help will be appreciated!

hey, do you still have the old one.
is it a single or double. any numbers on it?
if you have a part# try oemmitsubishiparts.com

I hadn't though to look for Mitsubishi parts, but I called the Dodge dealership today and found taht all parts are interchangable between the Ram 50 and the Mighty Max. Thanks for the lead, I ordered the Mighty Max pulley and should have this truck back on the road this weekend.