Need tread sizes for 71 power steering unit.

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eraiten

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Dec 23, 2019
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Freehold,nj
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1971 mustang convertible, 351C bored 30 over c6 with a shift kit
My 1971 mustang convertible with a 351c is almost street ready. I have the Saginsaw power steering unit rebuilt and now I need to know the sizes of the inverted flare fittings that attach the hoses to the unit. I have contact several companies and no one knows. Can someone please help.

Thanks
Ed
 
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1971 Mustang Mach 1, M code, 4 speed.
This has been posted on before, but, I'm going from memory here.
I think it is 11/16-18 on the HP line and 5/8-18 on the return. The 71 had the long HP hose, but the short one will also work. Get the correctly made hoses, don't rely on made up ones unless done by a professional Hydraulic shop , would be my advice.
 
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Don C

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1971 Mustang Sportroof M code
+1, unless you have the equipment to make up high pressure hydraulic hoses either buy ready-made ones or have a local shop make them up. A local shop can use your old fittings to make up a new set. Never, ever, use gear clamps on any hose, low or high pressure.
 
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Any reason why replacement hoses won't work?

My preference on those would be to buy those from NPD. I have had mine on the car for several years now without any issues. Other vendors carry them as well, but get the best quality available.
 
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67 GT S-Code 4sp
Agreed to all previous comments on professionally made or reputable retailer. Blew the HP line back in 2016 while at an event. Talk about a mess. Fortunately, I just removed the belt on the pump and limped it back to the trailer. Think I bought the replacements from NPD and no problems since. Other that hours of cleanup from trans fluid all over engine bay.
 
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