Power steering leak ( steering arm)

[Hikersteve74]

Been trying to track down a PS leak for last couple weeks, replaced some questionable hoses on return side as it is leaking own right next to passenger tire.
I have come to discover it is leaking out of boot on steering arm.... guessing that's all bad.
Anyways will be off the road and back to where my FSM is so I'm going to try and figure out what seal it is.... just wonderin if anyone has any feedback on this or had this issue before.
Thanks

[Hikersteve74]

So I am assuming it's the seal on rack pinion. Is this part still available?

[scotty]

Is the power steering pump different on the 4wd van?