I just checked the dealer's web site and it's still there.
I talked to my brother yesterday and he drives a truck just like this one as his work truck. He has been a John Deere mechanic for about 30 years.
He said 'don't get it, it won't have any power'
Does he drive a cab & chassis model? Those trucks are detuned from the factory and its well documented on the Cummins forum.