I see a lot of people saying this. Did you watch the Ike RAM DRW AISIN VS GM SRW? Extra gears sure didn’t help the GM.
I can see the advantages for a gasser but not so sure it’s that big of a deal with the Cummins.
Why has a class 8 a full 16 gears?
I'ts mainly because of the narrow rev range that a diesel engine has.
The more gears the more the engine can run within the peak torque range with the least amount of fuel.
Rams Gassers turn freely and easy up to 5000rpm, and are nicely usable between 1500 and 4500 rpm.
Our Cummins likes to run between 1300 and 2500. Roughly.
Its simple math which one "needs" more gears to be happy.
That TFL doesn't find a big difference is obvious, only stomp on the throttle and go isn't like every day use.
Sure it works with less gears, but its no fun.
Best example, I've got a Grand Cherokee at Home with the 5.9 Magnum Engine and the 46RE behind him, that one is fine to drive. The same transmission behind my Cummins is a major issue.
You'll experience it when the new setup arrive at the dealership.