My 280S has a bad steering box. When the pump is running, the steering box turns hard right and will not center.

I have located 3 used boxes. I would like to test all these boxes before replacing the bad in-vehicle one.

I would like to know if I could test the used steering boxes by hooking up a spare ps pump to one of my used boxes. Using a one hp electric motor to run the spare pump, could this arrangement test the used steering box prior to installation?

Or if anyone has a better idea, I would love to hear it.....

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71 220D 169K wrecked
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79 300SD (partswagen)
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68 280s GASSER!!! under construction now
85 300sd 310K miles winter beater car retired
93 300d 2.5 turbo 168K wife's car
83 280SL euro 5 speed 155K
69 250S newest project 54K

Doubt that you can do any real testing with-out having the box loaded...

Would look at the boxes & install the one that looks & "smells" best.

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