Propshaft UJ's only need a tiny amount of grease, and overdoing it can displace the seals. So it's not really a big deal. I've done mine very occasionally, maybe twice in ten years, and then less than half a pump of the gun. The rear one gets more weather than the front. Some Morgans have three grease points, an extra on the sliding yoke. To get access to the front, depending on model, you may need to open up an access hole where the floorboards meet.
