OK, so I jacked up the front end, rotated the front tires by hand, and all of the front driveshafts rotate, all of the way back to the rear transaxle, which I suspected would happen. Looks like everything is OK in regards to that topic. I could push it while jacked up on the floor jack, and the shafts for the front wheels do not rotate while in 2WD , but do rotate while in 4WD, with the front wheels off of the ground and the front rolling on the floor jack wheels. All looks OK there.
I just purchased a 2007 3010 Mule, and I'm checking all of the adjustments, when I noticed that when I'm in 2WD, and I push the Mule forward and backwards, that the front driveshaft always turns. Should this be happening? I would think that the front driveshaft would not rotate if the 2WD/4WD selector is in the 2WD position. Are the front wheels turning this driveshaft in this situation and it isn't actually connected to the transmission? If that is the case, does this mean that all of the axles and driveshafts from the front wheels, all the way to the rear trans-axle are always turning, even in 2WD mode?