need to replace rear wiper motor inexpensively.
where can I obtain a rear wiper motor on 2001 Ford Explorer
Your best bet might be a used part from a wrecking yard. I don't know if they are parting out any of the cash for clunkers vehicles, but I know they got a bunch of these in trade. Either way you should be able to find one used. You might be able to find free instructions over at autozone.com, and try installing it yourself. try these guys, http://www.lkqcorp.com/home/home.asp they come recommended by one of the techs who answers questions here.
google LKQ they offer good prices.