Re:

If the tracks are seized, maybe it had new or track pins/bushing internally were not worn very much, meaning the tighter clearances is what helped seize them. its been said to run tracks like that in water, say a creek bed with hard gravel underfoot or something similar. Of course do be cognizant of any fluid leaks and or contamination or water/wetland. Given your description, sounds like that would not be possible anytime soon LOL !

You said it was stuck in neutral and that would appear to eliminate it being stuck in gear with the master clutch seized engaged to a seized engine or something along those lines.

On the steering, I think but am not sure those have a similar friction assembly like a D2 that require a substantial tear down, through the bevel gear compartment or the final drives to repair the stack of disc's that could be bonded together from moisture/sitting idle outside etc.

Can you set up some dunnage, steel plate, or cribbing to disperse point loading on the slab and jack one side up at a time? Given the weight, the wrecker will have to do the same for their outriggers unless the ground is hard and I assume they won't put them down on your slab for fear of fracture due to point loading. I'm not sure what compressive strength your slab is, but you could do some simple calculations to determine the loading just the same. I've jacked a D7 in the field near a slope where the track came off in the mud, yours is a smaller tractor and weighs much less.

I would not see this as stupidity, any of these rebuilt will serve you well a very long time, tracks being seized might mean you have a decent undercarriage. I pulled out a D7 that sat outside for years, the tracks moved very freely, they were also well worn too.

This thread is interesting. A reply mentioned frozen water. Got me to thinking about all the years it sat outside and I only moved it in warm weather? Also, just before it was retired, sometime in the '70s, it was parked along the Racoon River bottom SW of Fort Dodge, when a flood came up in early spring and filled flood water in the cooling system and then froze, causing the engine to be removed and repaired. "they" got it going good enough to drive it up to high ground and parked it in neutral and covered the exhaust. Over the years, at least 15 gallons of diesel was poured down the exhaust to keep the engine free. None ever leaked out that anyone observed and I wonder where it all ended up. Since the tracks have not been in the mud or water for 30+ years I suspect something internal. Will buy a more powerful come-a-long and put it on the other track and see what happens. It sure pushed and rolled easily 10 years back, though. Thanks, Leo.