Seeking info on Cummins

Not really, there's still Detroit Diesel (GM). The big issue is that Catapillar briefly stopped making engines (they decided the new emissions requirements were to cost prohibitive, so they just bailed) but I think they've changed their minds on that because they just launched a new line of trucks. Also old timers swear by CAT motors.

I wouldn't call it "screwed up" more like gambled and fell short. Everyone in the market was going one way they tried something else and it didn't perform as they would have liked. So they joined the band wagon as most of the other R&D had already been done. (See also: E-85 and Ford)

Reputation is a good thing, also you can't get CAT mills anymore.
Realize there are only about 6 heavy truck companies anyway.
It's a very small field.

*cough* *cough* Let's just say, there is a downside to "just in time delivery".
Any part you want is still 2 days away.

In my case it's an example of "hook em young" my first rig had a Cummins.
It was a very tired, old 9800.
Of all the problems that POS had, the engine always ran.

Then I went to another outfit, and got a Freightliner with a Detroit. That engine had problems.
So when offered a new truck, they asked "Cummins or Detroit?"
I've got 80k on my Cummins now (admittedly she's still a baby by truck standards) and she purrs like a kitten, (except when it's cold or under heavy loads)

Other guys at my outfit have over six figures on the odo and complain all the time.

Go figure.

Hope that helps.