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14 Bolt FF Axle Seals ......... Arghhhhhh!

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Stoopalini, Feb 6, 2001.

  1. Stoopalini

    Stoopalini 1/2 ton status

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    The Corp 14 ff has wheel seals in the drums because the fluid travels all the way to the ends.
    When I first installed the diff, I replaced both seals just for good measure. About 2 days later, the drivers side started leaking so I replaced it again.

    It has been fine for about a week, and now both of them are leaking!!

    Whats going on here? Anyone have experience with this type of problem? Maybe I should just get 2 new drums, but I don't even wanna know what that will cost me!

    Thomas.

    -- '84 K5 Blazer --
    <A target="_blank" HREF=http://Stoopalini.coloradok5.com>http://Stoopalini.coloradok5.com</A>
     
  2. BIGJ

    BIGJ 1/2 ton status Author

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    Check the spindle's. There is probably a groove worn in the spindle, and that's why it's leaking. I have heard of guys using a speedy (sp?) sleeve to go over the grooves. If you search the posts, the guy that suggested the sp sleeve even gave the part number he got from national drivetrain. I had the same problem, I just moved the seal about 1/16" in to clear the groove. I'm buying sleeve's next time.

    BIGJ
     
  3. elkboy

    elkboy 1/2 ton status

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    I've done the offset the seal lip from the groove trick, and it works pretty good if you anly have one groove. If a groove is not the problem, try buying good quality seals from NAPA. Cheap seals suck and somtimes distort during installation. Also, use a bit of grease on the seal surface during installation to keep it lubed until the oil gets flowing.

    good luck


    [​IMG]<font color=red> Elkboy</font color=red> [​IMG]
     
  4. HarryH3

    HarryH3 1 ton status Author

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    Also make sure that the axle vent tube isn't blocked. Heat expansion will cause the seals to leak if the pressure can't escape via other paths.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <A target="_blank" HREF=http://ThunderTruck.ColoradoK5.com>http://ThunderTruck.ColoradoK5.com</A>
     
  5. Stoopalini

    Stoopalini 1/2 ton status

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    Cool! Great info guys ..... thanx!

    I got the seals at Autozone, and that was probably my first mistake. I'll buy the next 2 from NAPA.

    I installed them by greasing them up and pressing them in with my press. Should I not be using the press to do these?

    Thomas.

    -- '84 K5 Blazer --
    <A target="_blank" HREF=http://Stoopalini.coloradok5.com>http://Stoopalini.coloradok5.com</A>
     
  6. BIGJ

    BIGJ 1/2 ton status Author

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    I use a race/bearing driver to install the seals. It' s a big seal, bigger than my race driver could handle. I bought a 3" puck of aluminum and had it turned at a machine shop to fit the seal and races of my 14 bolt. It cost me about 20 bucks and is a lot easier than using a socket for all the races and seals, and probably quicker than using a press.

    BIGJ
     
  7. Stoopalini

    Stoopalini 1/2 ton status

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    I just used the metal plates that came with my press to press them in. They are a lot bigger than the seal, but the seal seems to fit even with the inside of the drum ..... is this incorrect? Is the seal supposed to sink inside the drum?

    Now I'm confused [​IMG]

    Thomas.

    -- '84 K5 Blazer --
    <A target="_blank" HREF=http://Stoopalini.coloradok5.com>http://Stoopalini.coloradok5.com</A>
     
  8. titanic

    titanic 1/2 ton status

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    If the spindle has grooves-moving the new seal slightly in or out will work for awhile but as soon as you get into a little mud, they will start leaking. The speedy sleeves work, have Not had to replaces seals since 1994 and I done alot of deep mud crossings since then. Tip on install. the speedy sleeves: Get a piece of muffler pipe and flare the pipe just so it'll clear sleeve. The sleeves come with a flange that can be broken off after installing them but leave it on and it will protect the seal face somewhat
     
  9. Smitty

    Smitty 1/2 ton status

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    Part # for the sleeves is 99282. The number is good for National and Carquest brands.

    Smitty
     
  10. Stoopalini

    Stoopalini 1/2 ton status

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    Is this the groove you guys are talking about?

    [​IMG]

    Any help is GREATLY appreciated!

    Thomas.

    -- '84 K5 Blazer --
    <A target="_blank" HREF=http://Stoopalini.coloradok5.com>http://Stoopalini.coloradok5.com</A>
     
  11. Executioner

    Executioner 1/2 ton status

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