Live PTO, perhaps, but do not see diff lock pedal. -PTO gets RPM low, good econonomy. -Six pretty well spaced gears.
-With a Dexta, you can easily run a PTO rotor tiller, I run a 72" one buried in second.
The Super Dexta is a better tractor, for a couple of reasons. Stronger tranny, more power and when it comes time to put bearings and seals on that rear axle, with the Super, you remove nuts to pull off, and the Dexta you drill and break. And the mechanical governor IMHO is better than pneumatic. I have 3 1/2 super dextas and a fourth parts super.
I grew up with the "N-Fords" and can buy what I want, and short of a fleet of 1000 series, the Super Dexta is my go-to utility tractor.