my front blower just stopped working this week too on my 2006 Dodge Grand Caravan. back was working but not the front. I do not have auto heat controls. Saw this thread and called up Napa for the part and replaced it very easily myself -- cost was $18.99 plus tax. The part # was BR266.
Just squeeze the sides of the glove box, carefully remove the the two screws -- unplus the two harnesses and pop them into the new one. voila!