Re:  “Today, it's the truck's turn.”  
The verdict is in and it's not good.
The lines are corroded and the transmission is bad.  $3,000 for a factory rebuilt replacement.  The range sensor can probably be re-used, but if not then it will be another $100.  If the mounts need replacing, they'll add another $40.
I'm not impressed with GM.  My truck is eleven years old but it only has 52,000 miles on it.
The mechanic said that he usually gets the parts he needs in a day but not this time.  He has to order the transmission from Pennsylvania.  I should expect to get the truck back in 3 to 4 days.
He also said that if I went through a dealership, it would run me about $4,500.  I believe that.

Gold is $1,581/oz today. When it hits $2,000, it will be up 26.5%.  Let's see how long that takes. - De  3/11/2013 - ANSWER:  7 Years, 5 Months