Farmall 560 Steering shaft issues

[Crawdaddy560]

I would like to get rid of some slop in my Farmall 560 steering shafts. There is play on the lower u joint knuckle that connects to the power steering control valve and that might be just a bushing job but do I have to take off the side rail to get to it? I will also look at what appears to be a slow leak in the control valve area. The middle knuckle seems to be ok but the upper one that goes into the steering bolster is loose. How big of a job are these?
Any suggestions from past experience?

 

[Mrfred54]

Pretty straight forward. When I have to remove a frame rail I put a jack under the bell housing and put a little pressure on the jack, then remove the rail. The last time I’d did those u joints I took the old ones to Napa auto and they got them for me