There are no rev's to speak of, not much load, normal bearings take chassis/brg grease. Mix chassis grease with a little gear oil and pack it in there like peanut butter. It won't leak and it will be lubricated for 50 more years. The bearings are not the issue, the wiping and channeling of grease allegedly will occur. But the sector/balls/worm will relube when cycled. Grease is formulated differently/synthetic than when some of the manuals were written. Various auto companies and restoration "experts" have different opinions on this. It's just standard moving parts meshing and low speed bearing operation. Front wheel bearings get grease, rear wheel bearings get oil, which is best?
