I have never done this one myself but I am pretty sure that the dash needs to
be removed to access the blower (not fun).  There is alot of write ups in the
archives on other folks who did it so that would be a good place to start.  I
sell new motors for $95 if you need one.

Thanks,
Ken Wilford
http://www.vanagain.com
John 3:16
Phone: (856)-765-1583
Shop:   (856)-327-0027
Fax:     (856)-327-2242