Calling 6sp transmission options that can't handle the output of the engine obsolete when the competition is building 10sp options that can with better fuel efficiency is pretty easy to understand. During the 4th gen run, a person was left with the choice of getting the 68RE that wasn't built to handle the 6.7 Cummins so the engine was detuned and marketed as an SD.; or a person could choose the Aisin that wasn't much better, couldn't be tuned, and derev'd between shifts. The transmission is the worst part about my 2018, and it's a 4th gen. Given the competition, it was completely ridiculous that this continued 6 years into the 5th gen run, which was as bad as the 48RE in the 3rd gen continuing until 2007. They were just counting on people to buy their junk because of the Cummins engine.
You aren’t overly intelligent, are you?
The “competition” has transmissions that are failing left and right, especially GM. Those fancy 10 speeds have a HIGHER failure rate than either manufacturers’ previous 6 speeds! Fact.
Second, the “inferior” Cummins six speeds manage to go toe to toe with those said 10 speeds. And still the best tow rig on the market is the Ram. Fact.
You realize they’re still 4th gen trucks, right? Oh you didn’t? Ignorance on display.
The 68RFE was not only built and intended to back the Cummins, but it used to be marked as…wait for it….a High Output! Gasp! It’s a perfectly fine transmission.
The fact the Aisin couldn’t be tuned is irrelevant. Who cares? You don’t have the stones to build your truck into a monster so why do you care? You think you know more than powertrain engineers that have to work within the confines of both government regs and reliability standards? Foolish
And I will finish with this: anyone, ANYONE, that calls the 48RE bad or junk, can never be taken seriously. Ever. Anyone that knows the trans knows what it’s all about, and why it is THE king in big power units to this day. Calling a transmission that was designed and released by 1962, and updated and tweaked for 45 years, is not bad. Again, a great transmission that idiots continue to slander.
So, you’ve proven you have absolutely no goddamn clue what you’re talking about. Pat yourself on the back, chin up, and learn something before next time