Transfer Case Seals and Muffler/Mid-pipe on 2005 Nissan Murano

Dealership wants to charge me $2700.00 (including labor) for these repairs!? Is there an easy way to find a cheaper repair shop?

Would leaking transfer case seals lead to a humming sound when the car is in motion? Sounds like my tires have a lot of tread... maybe I have more problems than I know.

Asked by for the 2005 Nissan Murano