New fluid and filter for sure. Do you still have your old pump? If so, where did it fail? Zf or vickers? The front seals are pretty straight forward, if you can get that pulley offa there.

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1984 300d turbokludge. Nato flat black- daily driver

"In the depths of your ignorance, what is it you want? Whatever it is, I can't deliver it because I just don't see it.
This isn't worth it. No money is worth listening to...(leaves studio)"
-orson welles