at least you can hope that the dealer will warranty the work, and stand behind their job. You hope. Its understandable if you are not one who wants to tackle this job, thats why we have pros who do it for us.
Those of us that can do it are blessed in the ability to do so. I am one who will try to fix almost anything anywhere, MH, house, car, electronics,computers,etc. with the help of screened advice off the net usually......sometimes I wish I didn't, but so far it has worked for me. Good luck and keep us posted.