I think that the dash has to come off in order to gain access to the blower motor. I know for fact this is true for the heater core and evaporator. If you do have to do this job, by yourself or having it done I suggest you do all of the above at the same time. The parts are cheap compared to the work involved. This is a big deal and expensive to have done. For more details go here http://www.dakota-durango.com/forum/index.php?

Ken