Here are a couple of tips for your power steering!
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POWER STEERING FLUID
Always use the correct type of power steering fluid that is recommended by the manufacturer. If you have components from several different manufacturers it is important that the fluid used is compatible with all the components. Most high quality fluids will list the manufacturers that their fluid is compatible with on their label.
VIBRATIONS IN THE STEERING WHEEL & COLUMN
In some installations the steering wheel or column could vibrate while the car is being driven. Whenever possible, use a rag joint to connect the steering box or
rack and pinion to the steering shaft. If there is not enough space for a rag joint you may be able to use a smaller diameter vibration damper. The diameter of these dampers is only slightly larger than a steering shaft coupler, but a couple of inches longer than a rag joint.