puting a drain plug on the rear end

Discussion in 'General Maverick/Comet' started by 302-72-mav, Oct 22, 2009.

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  1. 302-72-mav

    302-72-mav Member

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    has anyone put a drain plug in there rear end

    by drilling a whole in the rear end and welded a nut over it than put the bolt in it ------ i have a 8'' rear
     
    302-72-mav, Oct 22, 2009
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  2. maverick1970

    maverick1970 MCG State Rep

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    maverick1970, Oct 22, 2009
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  3. lilfarley

    lilfarley Chris Comley

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    yeah very good idea, but not sure what the best way to do it would be. Would be great for people who would like to service there differentials themselves but don't have a diff pump.
     
    lilfarley, Oct 22, 2009
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  4. 302-72-mav

    302-72-mav Member

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    YAH i bought a little $15 hand pump with a hose that i stuck down the filler tube and pumped it out but if i would have thought about putting a drain plug i would have done it
     
    302-72-mav, Oct 22, 2009
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  5. scooper77515

    scooper77515 No current projects.

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    I did like the last post. Drilled and tapped for 3/8" pipe, just off center of the gear. Then use allen headed plug, so nothing hangs down lower than the surface of the diff. Nothing will bang it, and nothing in the way if you use that area as a jacking point (as I always do). I used blue anodized plug.
     

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    Last edited: Oct 22, 2009
    scooper77515, Oct 22, 2009
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  6. blugene

    blugene Senior member Supporting Member

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    Last edited: Oct 23, 2009
    blugene, Oct 22, 2009
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  7. rthomas771

    rthomas771 Member

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    Really don't need one. All you need is a pan to catch to lube when you break the differential loose from the housing. Why have one more thing to worry about leaking
     
    rthomas771, Oct 22, 2009
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  8. 71gold

    71gold Frank Cooper Supporting Member

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    ...doublenut one of the studs on the bottom of the housing and remove it...:huh: the stud hole goes all the way through the housing.

    ...:Handshake...
     
    71gold, Oct 22, 2009
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  9. Bryant

    Bryant forgot more than learned

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    the "studs" are not threaded into the housing. they are splined into it. you can pull it through the front. they are like wheel studs.
     
    Bryant, Oct 22, 2009
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  10. 71gold

    71gold Frank Cooper Supporting Member

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    :huh:

    tap it into the housing...if you are draining for gear change..
     
    71gold, Oct 22, 2009
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  11. Bryant

    Bryant forgot more than learned

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    oops i ment cant pull it through the housing.

    if you taped the hole to thread in a stud it would be to larger for the hole in the third member.

    i have the botom of my diff taped and pluged like scooper does. it has never diped a drop.
     
    Bryant, Oct 22, 2009
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  12. scooper77515

    scooper77515 No current projects.

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    Genes is a good setup. I worried about having the bolt head hit by something and breaking off, but his has a protective rim around it.

    As far was why a drain plug? It is nice to drain and refill the oil without having to clean up the gasket faces, and replacing the gasket.

    Kinda like not wanting to change head gaskets every time I change the engine oil...
     
    scooper77515, Oct 23, 2009
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  13. rthomas771

    rthomas771 Member

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    Why do you want to change the dope in the rear end? It never goes bad. It doesn't get contaminated like engine oil and it doesn't hold moisture like brake fluid.
     
    rthomas771, Oct 23, 2009
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  14. blugene

    blugene Senior member Supporting Member

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    I am thinking that it could loose it's viscosity just like any oil. It gets hot and some of us spin really hard. I would say mostly for peace of mind that i'm protecting my rear end for a few dollars. ;)
     
    blugene, Oct 23, 2009
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  15. lilfarley

    lilfarley Chris Comley

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    The fluid can get nasty, from metal shavings from the gears, and some drain or fill plugs have a magnet on the inside of them and those prevent the fluid from getting nasty, but it does get nasty if there is no magnet on the plug.
     
    lilfarley, Oct 23, 2009
    #15
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