Replace steering box seals

[rkn463]

I have an 89 c60 that has a Saginaw 710 power steering box. The input shaft seals are leaking. I have a factory shop manual and it has instructions for how to replace the seal for the pitman arm but nothing for the input shaft. It looks like a seal kit is available but I've never worked on a steering box before and I don't know if it is something that I can do myself. Does anyone out there have any experience with this or a manual with instructions?

-Richard