[McGillicuddy]

Fred,
Here's a possibility based on my own recent experience. Sometimes they lock up from getting too much grease while the steering rod is in the wrong position at least that was what was happening with mine. They often get over-lubed. If the steering rod isn't fully retracted at lube time, this type of airlock is what happens.

If the steering rod has some zerk fittings you might try removing them probably one at a time, and then crank on the wheel to see if you can burp some of the grease out Put some paper towels around the area to keep the grease from getting everywhere. It's a slow process measured in fractions of an inch of gain and probably works best on a warm day when the grease is going to be softer.

If indeed some grease comes out the zerk and your wheel starts moving, then its likely just a hydraulic lock. All of the grease will have to be burped out and then properly lubed.

Of course it may be that it had no grease and rusted. In that case you'll probably just replace it.