Classic/Antique Car Repair: power steering leak on 1972 monte carlo, forward place, engine compartment

Question
how do i replace the seal

Answer
There a quite a few places where it might be leaking from, and the answer is different for each one.

Post a "follow up" question to me and tell me where the fluid is coming from.  If you are not sure, find the highest, furthest forward place that is wet with PS fluid - that will be the source, because leaks always flow down and back in the engine compartment.

Dick