"94 Blazer, has late upshifts. Why would the tech ask what trans is in the truck when only one trans goes in that model with a 350 motor?"
Habit. Plain and simple. There is a forum policy that if they don't supply all of the info, then it is asked. Whether it is obvious or not.
So, would you rather see a forum that regular users give advice back and forth or where mechanics try and head off stuff with correct info?
No one can read and correct everything, so it gets by.
And one of the things on the site states specifically,
"All repairs should be undertaken by a competant and qualified technician."
I don't know what you want.
Tell you what, Just for you, I'll shut it down, we wouldn't want that type of site affecting your business.
I'm done here. I don't need to justify anything to anyone. Have a good life.