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Steering box leaking

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 90K5, Mar 16, 2001.

  1. 90K5

    90K5 1/2 ton status

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    I was under my truck yesterday and saw a small leak from the rear seal o nthe steering box. I was under there today and the leak is a lot bigger, and it is also leaking at the pitmas arm. Will that power steering stop leak junk work on this, or should i get another box...even though every one I've ever seen leaks?

    90K5

    See my truck at <A target="_blank" HREF=http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502>http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502</A>
     
  2. muddin4fun

    muddin4fun 3/4 ton status

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    you can try powersteering stop leak. also, I think you can get away with just replacing the seals in it, but I don't know how involved it is. But, gear boxes are extremly picky about dirt, and if you have a leak, chances are that you have dirt in the gear box which will ruin it. It won't happen overnight er anything, but it could be on it's last leg.

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  3. Blazer79

    Blazer79 1/2 ton status

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    Mine is disassebled right now because I'm looking for a way to stop the leaking. I tried to find new seals locally, but no luck. My next option I think would be to order a complete seal kit from Carparts.com. I posted about this yesterday, but someone told me that they will eventually leak anyway. So I don't know if it's better to find a cheap junkyard box. I still don't know what to do.

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  4. Cusm

    Cusm 1/2 ton status

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    I had this problem as well, as we all have or will have. I could have put in new seals, but I figured after 20 years the seals would just be the first to go on the box. I found a rebuilt one at my local auto parts store, O'Riely's(sp), for $150 after core, it has a lifetime warranty. It is extremely easy unless you run into problems w/ the return hose fitting, like I did, even then it is just tracking down the right part. I had to go to the salvage yard to get one that would work, after I tried 3 differnt types from 3 different sources, including a GM dealership.

    [​IMG]
     
  5. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Seals are like $10-15 as I recall from Auto Zone. If it's the bottom's (there are actully 2 in there) you don't even have to pull the box to do the repair. It's messy though. Should be no rpoblems with dirt unless you park in mod over the box. it's under pressure so just because it's leaking out doesn't mean it's leaking in.
    Pull the C-clip throw a catch pan or 5 under it (it will run downs the spring). Fire up the truck and give it full left crank and it will blow the seals out. Then remove the pit man arm taking note of what seal goes in first. Drive new seals in and re install the C-Clip and top off the pump and your done. The repair takes about an hour. The clean up may take the rest of the day though LOL.

    Diging it in the dirt with my K5's
    Grim-Reaper
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  6. Blazer79

    Blazer79 1/2 ton status

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    Hey, Grim-Reaper, that explanation is worthy of the Technical section and a sticker to you. Nice, simple explanation. Maybe you could write about the top seals too.

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  7. ftn96

    ftn96 1/2 ton status

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    The leaking steering box is a common problem on the blazers. I think its best to just pull the whoel damn thing out adn replace all the seals at once adn be doen with it. But Gimmy's process for those bottom seals is right on though.

    I personally just keep my resevoir full and let it leak. At least till I get around to messing with it. I will do that when I install the steering brace.

    Will work for beer, parts and tools.
    90 Jimmy 350TBI-700R4-241-33" BFGs-10 bolts w/4.10's
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