Layout,
What model/year is your Freightliner and how many miles are currently on it?
With all the problems, you're having(hail damage notwithstanding), I'm wondering if you're perhaps experiencing that point of no return paradox that comes with age and high mileage.
The truck is in good shape for the most part. It is just normal "little things" that I have to contend with.
It is a 2006 M2 M112. It has 551500 or so on it. The engine, tranny etc are good. No REAL problems to speak of. There is a lot of life left in it.
The AMU thing is a known problem and Freightliner is aware and refuses to fix.
The other things are poor shops. They "fix" something and they don't do good work and I have to fix it again. Once should be enough.