Follow up on actual cost
Not to bump this thread, but the final bill was:
$338.91 to repack the bearings and 'check brakes' because they pulled to one side. Parts accounted for $53, but included a small piece for one of the brakes adjustment components.
This was $50 lower than the original bill because I told them they were above market based on the responses to this thread. They reduced the price immediately.
BY THE WAY - the brakes pulled worse than when I brought them in. I spent several hours adjusting them, but finally had to give up and drive Houston to Steamboat Springs CO (two major mountain passes) with the problem. (We were grateful for the jake brake on our new F250 - hardly touched the brakes going down the passes)
Now that I know more about electric brakes, I don't think they checked the voltage or anything, which I will do next time I'm at the trailer. This winter, when we bring it home to Texas, we're getting disc brakes installed. Enough already!
The lesson is - DO IT YOURSELF IF YOU WANT IT DONE RIGHT! Or have a dedicated, knowledgeable and trustworthy mechanic! So much for my rant!
Hey, its the only way to be sure!