RE: Working on an F-350
All you say is what my friend understands, he had his own repair shop for
17 years, worked on everything from my Vanagons to big RVs and everything
in between.  These new rigs are scary as hell.  Big ticket up front to
acquire and then one gawd awful bill if any work has to be done on them.
And then so many electronics and electrical things to go wrong.