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Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Resurrection_Joe, Apr 14, 2004.
Can I assume hose are interchangeable from this ?
Yep, the non-hydro lines are the same...
ok, Then what year did they switch to the o-ring type hoses??? My 78 had old style hoses and my 84 had the o-rings?? neither with hydoboost.
I believe they switched to the O-ring style in 81
Yeah thats the whole problem I've been having, 85 2wd box on a 78 4wd truck, lines are flared type, box uses o ring type
Honestly, and this may be ignorance talking, but I can;t see why they wouldnt work, the bolt in fine, and are not as some have told be metric unless 3/8ths NPT is metric
They don't work because the 0-ring style seats on a flat surface, and has a flat surface for the o-ring to seal with, and the older type use a flare fitting. There is no seat for the flare fitting on an o-ring box, and there is no flat seating surface in the flared boxes.
It's not like you are dealing with just 10PSI on those fittings.
I just replaced my steering box and it leaked at the fittings, just a little bit, barely noticeable. The box came with a bag of O-rings, so I pulled the fittings out and saw that one had a smashed up O-ring and the other had no O-ring at all. I put the new ones on and it fixed it up.
The weird thing is (a) why didn't it leak like crazy with no O-ring? and (b) why was it not leaking at all with the old box and no O-ring, or did the O-ring stick into the old box...
You know, I'm just going to fire the damn thing up when I get the rear shaft back on, of it leaks, I'll try something else. If it works, hey, I have 60 bucks in my pocket still!
I still have no idea what autozone is thinking
AND I still want to know if I can use hydraulc hose
I can't see ANYTHING going wrong with hydraulic hose as if I seal the threads up well, theres no loose connection, it's just there
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