Ron, I would like to help you, but need to ask some more questions before I can give solid answers, please bear with me. Of course I could suggest you replace alot of parts, for lots of $$$$. I don't like to spend alot of $$$$ and I don't like to throw a lot of parts at a tractor and hope it will fix problems. Is this a working tractor that you need back in the field fully functional asap? Or is it a weekend worker, that you can limp along for a short while? For the power steering gearbox, there are some things that can be rebuilt, I am aware of some issues about nylon bushings as replacement for real bearings(not good). There are some reliable people who deal in used but usable parts( whole steering box replacement vs. rebuilding your own). You can try your local NH dealer, but I do not think new units are still available, seals and bearings maybe. Your power steering pump filter should be available from the NH dealer, if you live in an agricultural community NAPA, CarQuest, or Ag equipment repair shop. Seals for the pump should also be available. On your hydraulic pump, what symptoms lead you to believe that the pump needs rebuilt/replaced? There again parts are available, but it may not be your pump. It could be in the controls, lift mechanism or fluid. Or a combination of any or all of the above. Where are you located? There are some web sites that list tractor salvage yards. I'll have to look through some of my materials. HTH. ATW/WA
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