Power Steering Leak
 

I had to replace the pressure power steering hose recently on my 1982 300SD. I thought it was a good opportunity to change the PS filter and fluid. Since I was having a little seepage around the Pitman arm, I tried Valvoline's Max Life Power Steering fluid. After a couple of thousand miles, I now have more than seepage. Other than the leak, this steering box is in good condition with an acceptable amount of play.

Here are my questions:

1. Did make a mistake using Valvoline power steering fluid instead of ATF?
2. Should I change out the power steering fluid with ATF and add some ATF anti-leak?
3. Can I just take off the housing adjacent to the Pitman shaft WITHOUT removing the Pitman shaft so that I can replace the two o-rings and seal? (The mesh adjustment is fine on this unit without excessive play) I see where seal kits are readily available from Meyle. I would probably want to replace the upper seals as well.

Any other suggestions or warnings from those who have done this job would be appreciated.