ODIOUS

Looking to replace me PSP this spring. Its a little whiney and its getting harder to turn.
I saw some great writeups on other models where ppl would/could overhaul their MB pumps with a seal kit.
The kits were $20 or so. Wanted to know if our pumps with speed sensitive steering could be overhauled in the same manner.
More specifically is there a kit available so i can do the job.

Anyone know a part number or aftermarket vendor?
I have looked around and could not come across anything online.
Next step is to call the parts department at the dealer but they are often hit or miss on uncommon parts.

Thanks in advance!