Fluid level for Ford 8" rear end

Discussion in 'Technical' started by mrcomet, Aug 1, 2010.

  1. mrcomet

    mrcomet Member

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    How much fluid is the proper amount for a Ford 8" rear end. I have a leak and need to know how much to put back in after fixing.

    Thanks!!
     
  2. Acornridgeman

    Acornridgeman MCCI Wisconsin State Rep Moderator Supporting Member

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    With the axle level, put it in slowly until it starts to run out of the filler hole. Bottom of that hole is the full level.

    (y)
     
  3. don graham

    don graham MCG State Rep

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    Yep. What Eric said. Have a rag handy.:)
     
  4. 302-72-mav

    302-72-mav Member

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    some third members do not have a fill whole the last 2 that i broke didn't have one

    so i had to fill it up by pulling one of the axles and having the car at a slight angle to put the fluids in it i think i put 3/4 of it in out of 1 gallon
     
  5. mrcomet

    mrcomet Member

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    That makes sense.............Thanks for the info!!!:thumbs2:
     
  6. sgaugeguy

    sgaugeguy Bob Kraus

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    72 Ford Shop manual calls for 4 pints. Then the sub note reads : "Approximate refill capacity - Actual lubricant capacities are determined by filling to 3/8 inch below filling plug hole". How would that be measured?
     
  7. Awesome_X

    Awesome_X Member

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    When I worked at the tire and lube joint I was told to stick my pinky finger in the fill hole and if it can touch the fluid then it was full and if not then add some until I could touch or it was at the bottom of the fill hole.:huh:
     
  8. Stavro

    Stavro Transplanted New Yorican

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    When it actually has a fill plug (I've yet to ever see one without one but they obviously exist) I fill it till it pours out....cap it..........let it settle for 15 minutes or so and check and fill it again.
     
  9. Acornridgeman

    Acornridgeman MCCI Wisconsin State Rep Moderator Supporting Member

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    I have never run across one without a fill plug. Makes you wonder how they filled those at the factory ............... :huh:
     
  10. rthomas771

    rthomas771 Member

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    Through the fill hole on the side of the case.

    [​IMG]
     
  11. Bryant

    Bryant forgot more than learned

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    The early 8" didn't have the fill plug in the case. It was in the back of the housing.
     
  12. Craig Selvey

    Craig Selvey Indiana State Rep - MCCI

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    Correct. Combine that with a newer housing and guess what? No way to fill it. :D

    P.S. Unless you want to pull out an axle and fill it down the axle tube.
     
  13. sgaugeguy

    sgaugeguy Bob Kraus

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    How about this idea? If there is no filler plug anywhere, unscrew the vent tube holding down the rear brake hose and fill it through that hole. As long as you know the capacity it should be fine.
     
  14. simple man

    simple man Member

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    WOW! that's a new one to me! Mines on the left side of the third member. I guess some models had the fill in the back of the housing,so their third member wouldn't have a fill. :hmmm:
     
  15. Acornridgeman

    Acornridgeman MCCI Wisconsin State Rep Moderator Supporting Member

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    I never had one like that .......... very interesting. (y)
     

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