I'm looking to buy new hoses for my 73 2wd with a 390. I found a new pump at AZ, but they do not list the hoses. It looks like I have a cooler, with the metal tube cut off and rubber hose attached with a hose clamp (this is leaking bad!)

I would really like to replace this line. Anyone have any input?

 

You can get both the high presure and the low pressure hose at damn near any auto parts store. Unless you have a custom set up. The low pressure hose "the one with the hose clamps" is just a universal length cut to fit hose rated for power steering fluid. If you have a custom set up take it to a hydraulics shop they can make you a hose for about $50.00.

 

^ What he said - the low-pressure return line should be just standard hose available from the auto parts store.

 

Chris, what co425 said is in-correct.

The P/S return (low pressure) hose has a metal fitting swagged onto one end. This fitting threads onto the gearbox.

Past the fitting, the rest of this hose is neoprene rubber, t'other end clamps onto a nipple on the pump.

There is no way...none ...to remove that swagged on fitting from the return hose. It's a one piece assembly.

The P/S pressure hose has swagged on fittings on both ends.*

1973/76 F100/350 360/390 2WD:

D6TZ-3A713-F .. P/S Hose, Pump to Gearbox (Return).

D3TZ-3A719-D .. P/S Hose, Pump to Gearbox (Pressure).

* Chris, since you have a 1981, you may not be aware that: 1978 and later P/S pumps have a plastic reservoir. 1965/77 P/S pumps have a steel reservoir.

The P/S hoses used with the 1978 and later pumps are a different design than the hoses used 1965/77.

 

NO you sir are wrong Number Dummy. He states right in his post it is attached with a hose clamp. That is the low pressure side. Hi pressure is a swagged and clamped on hydraulicly. Most if not all low pressure sides are done this way until you get into much newer vehicles.

 

Thanks, Bill, I guess this is what I get for venturing into surrounding areas with which I am not entirely familiar.

Noticed on hipo they have a 70s parts catalog on CD, I hope to get one someday when I'm rich & famous (or at least have a steady income) just like the OSI manual.

I had power steering on my 1970 Mustang but I don't remember these details, only that it was a hydraulic cylinder attached to a pump.

As I seem to remember it (been a few years now) my 1981 has a rubber hose held onto a tube with a hose clamp, I remember removing & cleaning everything when I rebuilt the engine and cleaned all the grease out of the engine bay.

It's got the steel-reservoir pump but I'm not at all confident it's what it came with out of the factory, given all the other things that I *know* previous owner's have changed; for example, the block was D1AE casting instead of the D7TF I expected.

co425 - Bill (NumberDummy) has a garage full of old Ford documentation from his decades of experience working at Ford dealerships, he can tell us probably better than anybody else on FTE how these things came out of the factory and he has the documentation to prove it.

As for what the OP is describing, well, anything this old is gonna have a higher probability of having been mucked with over the years and changed by previous owners.

If it were my leaking PS system, I'd probably first take it apart and see if I can find out why it's leaking and go from there.

Whether that means new OEM-type hoses or not would depend on what I found....

 

Maybe this can help?
https://www.napaonline.com/Catalog/R...99&Ntk=Keyword

 

The P/S return hose is neoprene hose on one end, has a swagged on fitting on the other. So, one end clamps onto the P/S pump, the other end threads into the P/S gearbox.

The P/S pressure hose threads onto the pump and the gearbox, because it has two swagged fittings.

There is ONE P/S return hose listed in the 1973/79 Ford Light Truck Parts Catalog for 1973/76 F100/350 360/390 2WD's:

Catalog sez: D6TZ-3A713-F (replaced D3TZ-3A713-C) .. P/S HOSE-PUMP TO GEARBOX (RETURN). The catalog makes no mention of a cooler.

EDIT: WHOA!! I looked at the parts catalog illustration...The cooler is part of the RETURN HOSE!

 

Bill and co425, hopefully I can straighten this out for you.
Most power steering equipped 73-79 came with a factory installed power steering cooler. This consisted of a steel tube that came out of the return (low pressure) port and serpentined to form the cooler. From here a hose connected the return to the power steering pump. There was a hose clamp on each end of the hose.
The vehicles that weren't equipped with the cooler or if you wanted to delete or bypass the cooler there was a hose that had a steel fitting swagged on one end, this connected to the return port of the steering gear. The other end connected to the return port of the pump with a hose clamp.
In the first picture are the two hoses that Bill is refering to, the top hose is for the pressure side. In the second picture is the power steering cooler that uses just a hose with two clamps for the hook up.
Hope this clears things up.

 

Mike, I was just gonna make ref to you as you can scan and post the catalog pics.

Please post this little darlin: Illustration Section 36, Page 4 (Power Steering Hose & Pump Installation ~ 1973/77 F100/350 2WD).

btw: I edited my post while you were typing yours, cuz when I looked at this pic...it shows the 3A713 return hose having the cooler.

 

Here's the illustration Bill is refereing to.
Click on the .pdf link to view

 

That top pic is exactly what I was referring too. Must be wrong though since I've only been building fords since I was a kid. Just because it's in a book doesn't always mean it's right. The right answer is usually somewhere in the middle. Especially with a Ford. You Number Dummy should
know that better then anyone.

 

Open your peepers, and look at the parts catalog pic that I asked Mike to post.

I coulda snuck away without saying anything, but I didn't. I wanted the OP and y'all to see the actual pic so y'all could see the installation.

And, it's my fault, because when I typed the jazz, and the text section of the catalog made no ref to a cooler...I shoulda looked at the pic to be sure.

And btw, Mike has this catalog on a CD (available from hipoparts.com), while I'm using Ford microfiche slides, so scanning and posting is...in two words: Im Possible.

 

And it shows a hose clamped fitting on the return. So I don't understand how I'm wrong. Also if you cand find the proper hose you can buy a sae flare fitting with a barbed end to use standard hose. Why is this so damn complicated to fix this guys simple problem.

 

Post #13: I just admitted to y'all that I made a mistake, based on what I read in the text section of the parts catalog....so, my apologies.

D6TZ-3A713-F (replaced D3TZ-3A713-C) .. P/S Return Hose, includes Cooler / Obsolete

MILLER OBSOLETE PARTS in Binghamton NY has 1 = 607-722-5371.

HIGH BUCK! BOB ALLEN FORD in Overland Park KS has 1 = 800-676-0675 / Call as a last resort, cuz the snake wants mega-bucks for obsolete parts!

D3TZ-3A713-C =

GREEN SALES CO. in Cincinnati OH has 2 = 800-543-4959.

No other Ford Dealer or obsolete parts vendor has either one a these hoses..