Powersteering Box Fittings

[84_Chevy_K10]

It might screw in, but it isn't going to seal. I couldn't get the metric o ring fitting to screw into a flare fitting box when I installed my crossover and had to switch to the other box I had laying around, but I suppose the opposite is possible.

The thread diameter of the metric o ring fittings are slightly larger than the flare fittings. So, if you screwed the SAE hose into a metric box, it might thread in, or seem to, but it's not going to seal. There is no 45* surface inside the box for it to seal against, so it is going to leak without question.

I'm really not trying to be cocky in this response here. If your box has different fittings than the hose, it's just not going to seal correctly. To avoid the hassle, it's just easier for me to tell you that right now than have you go out and leak power steering fluid all over your floor.

And as to 85, 86 C10, etc. It doesn't matter. If it's from an 82 and later truck and has an O ring fitting and the 2wd sector shaft, they're all the same. Same with 4wd, the only change throughout the years that I know of is in reguards to the power steering hose fittings. Other than that, a 4wd box is a 4wd box, as a 2wd is a 2wd box as long as we're talking power steering boxes here (manual box might be different).

 

[84_Chevy_K10]

[ QUOTE ]
The reason I think they are interchangeable is because the parts numbers at Autozone from 78/85 4wd trucks, all of them, match, yet it gives you another part number and says you can use these alternatively, which is a bit odd because the O ring fitting I got with the 85 box is too tall to screw into the 78 flare box, but the same thread

[/ QUOTE ]

Autozone part number for 1985 truck, pressure hose:

71402 (preferred), 71088 (optional)

Autozone part number for 1978 truck, pressure hose:

70911

As I stated before:

1. They're not identical

2. If the thread is the same it makes no difference as it's not going to seal with the incorrect style hose on it. If you did get it to thread in, stop concentrating on that fact. Even if it does thread in, it will never seal and is going to leak like a sieve.

 

[Resurrection_Joe]

Gmeh.....

Well I HAD a nice little JPG of all the part numbers being the same, as someone may remember, but I deleted it

Anyway, no big deal, new pump and 2 new lines

Just wanted to insert a little pondering on why they threaded in

Also, just to be obstinate, I'm going to try and run it just to see if it'll leak

Thanks for all the research

 

[Resurrection_Joe]

Oh wait, i still have my 78 box, is swapping the sector shafts a very involved process?

Oh wait.... my box is getting rained on right now..... poo.....

 

[84_Chevy_K10]

Nah it comes out really easily once you remove the pitman arm which you've got to do anyway.

 

[Resurrection_Joe]

You're so helpful lately, I'd hug you if I thought you wouldn't go nuts (or were a thousand miles away)

Man, I hate to say it, but I just ran out in the rain and into the shop to see how hard a pump removal would be, and, well, engines kind of intimidate me....... GWAHHHHH! NO! BELTS and PULLEYS and BRACKETS

The engine and tranny are out to get me, I know it, I've replaced or modified evberything else......

Anyway, off to search for a how to on the conversion on the box

BTW - Ever get your bumpers?

 

[84_Chevy_K10]

Bumpers will be here next tuesday or wednesday. Rear is done, front is all tacked together and will be done by 10 AM tomorrow, then paint and they'll be shipped to me. I'll be pimping the pics ASAP, trust me.

 

[bgchvy79]

Not trying to be mean, and I hope none of ya'll are related...is this the CK5 Down Syndrome Calender? I'd go to bed with those trucks and ride the girls down the trail before anything else...PS - The trucks don't even look good either.