I fixed this very problem two years ago on a 49 WD. The spindle was loose on the verical shaft. I had to have the machine shop build up the shaft and recut the key way and make a new key. The bearings were both shot. The lower bearing was very expensive. Had to get it from Agco as it is a special bearing. I know it was at least $130 and that didn't include the race. I had a hard time getting the bearings shimmed correctly.
The wheel bearings feel apart and I had to replace them.
I also replaced the u joint. Don't get the u joint from agco. it is cheaper from one of the online parts outfits.I spent about $1200 on the front end.