Please keep in mind that the dealership is not there to move parts from distributors to end users and cash from end users to distributors. They are trying to make a living and have expenses such as people asking them to swap parts for them and then complaining because it didn't solve their problem.

We have the luxury of being handy and inquisitive. Those two traits are very valuable to each of us. Don't beat up the dealer for trying to earn a living from those who can't or won't do the work themselves.