Well it’s a snowball effect
You said it sounds like electric motor
I said here are all the electric motors
Then you said this
“e. Seems like that rear hvac motor or the suspension pump may be the ones.”
Which had me focused on electric
Motors that are in the back / inside the truck…
So it’s not one thing that you said it’s my 6 am coffee forum reading brain that bounces us all over the place… carry on! My bad!
The last thing I want to do is add confusion! Lol… unfortunately that happens with internet diagnosis