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I have narrowed this problem down to the "steering shaft flange and flex coupling", question is how difficult are these to change for the average do it yourselfer?
Looks like I need to drop the steering gear to do this, is that correct? If so do I need to bleed the PS pump? Is there anything here that I really need to be careful with or that is really difficult?
Their is a lot of play here when the flange moves before it makes contact with the pins on either side and starts the wheels a turning. Looks like the pins are worn about 1/4 on each side or about 1/2 way through and the flange opening on both sides appear worn so they are bigger than they should be.
135,000. I've determined that it was the rag joint (I've replaced and seems to be much better now) that was causing the problem. It was torn completely at one point. It appears the king pins and tie rod ends are ok for now.
It's not the pins. THe pins are not what turn the shaft. I appears that the pins are worn but they aren't. The looseness is one of a few things. 1) the rubber coupling needs replacing. You can get this at any auto parts store that has a HELP display. You'll have to drop the steering box to replace it. 2) the steering box is loose. You can try adjusting it but it's bitch and a half to do it right. Repair manuals have the procedure. 3) front end components are loose. Worn tie rod ends etc.
I just replaced everything on my E250...coupling,steering gear and all the tie rod ends and power steering pump and hoses. It was a double bitch doing it!