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I removed the power steering hoses from the power steering box on my 69 Z and when I tried to replace them I found that one of the hoses wouldn't rethread back in. After further inspection I found that the male end of the hose had some ragged out threads, so I bought a new hose, no luck. I also suspect the female threads are toast as well. Can these be rethreaded. I know I can replace the male threads by replacing the hose, but it's the female threads on the steering box itself that concerns me. Someone told me to try a 1/4" pipe thread tap but will there be enough travel to do any good. Or are there any other options?
 

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Remove it from the car to get a better look. Theres not much to work with as far as thread depth so I doubt a tap will even get into the bad area.
Since it's not cast you could possibly have it tig welded and then re threaded but I doubt it.

Most likely best bet is to replace the box. They don't cost much used at a salvage yard. Take your old one with you.
 

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The trick is going to be keeping metal shavings out of the unit. If you can't refurbish the threads without getting metal in it, your SOL.

Look for some rethreading taps. They don't cut quite like a threading tap - more like push the threads back into shape. They are typically blunt on the end and might allow you to at least get the first three or four threads. I've seen them at sears, but it's been a while so I can't say much about them. Beyond that you're going to have to find a hydraulic's specialist or replace the unit.

-dnult

-dnult
 

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I know with the pump fitting, it is VERY hard to start the nut if the fitting is not lined up exactly straight with the hose end.
If the threads on the pump are bad, the fitting can be replaced. Don't know where to find one though. Maybe Detroit Speed or a steering rebuilder.

The fitting threads are fine thread bolt threads.
David
 
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