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changed rear diff oil concern

Discussion in '2nd Gen. Tacomas (2005-2015)' started by kauai808boy, Jan 24, 2013.

  1. Jan 24, 2013 at 5:29 PM
    #1
    kauai808boy

    kauai808boy [OP] Member

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    icon/fox 3inch lift, flow-master super 40, jba shorty headers
    just changed my rear diff oil in my 07 toyota tacoma 4wd non lsd used 3 quarts royal purple 75w 90,

    as i was adding in the last quart of oil i got about 3/4q done then all of a sudden the oil started leaking out from the refill plug i have about 1/4q more to put in

    i made sure to drain all the oil out drove for about an hr before i did this oil change and when removed the fill plug no oil leak out

    so im not sure if i put to much oil in it or it did not have enough oil in it the first place also i have a 3inch lift on my truck too could that be the reason also

    any input would be much helpful
     
  2. Jan 24, 2013 at 5:30 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Youre fine. Dont worry about it.
     
  3. Jan 24, 2013 at 5:31 PM
    #3
    David K

    David K Well-Known Member

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    Fill to drain hole... plug it... drive around the block... re-check and add if needed!
     
  4. Jan 24, 2013 at 5:31 PM
    #4
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    If you drained the oil for that long then the oil drained from the axle and everything. It takes a while for the oil to work it's way out through the axle again. Seal it, leave it to sit for about 30 minutes and try again, I'll bet it will take that last 1/2 quart then :)

    The same thing happened to me with my front differential not that long ago.
     
  5. Jan 24, 2013 at 5:46 PM
    #5
    kauai808boy

    kauai808boy [OP] Member

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    icon/fox 3inch lift, flow-master super 40, jba shorty headers
    thank you very much for the input very helpful indeed it solves my concern
     
  6. Jan 24, 2013 at 5:50 PM
    #6
    KenLyns

    KenLyns 8.75" Third Member

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    This is unexpected, because the front diff doesn't have axle volume.
     
  7. Jan 24, 2013 at 5:54 PM
    #7
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    I know, it actually really surprised me also. It took about an extra 1/3 quart.
     
  8. Jan 24, 2013 at 5:56 PM
    #8
    DR Da_da

    DR Da_da Infrequent Member

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    OP - Since you're lifted, are you running rear axle shims to rotate your pinion up? If so, that means your diff fill hole is rotated down a little bit. This reduces the amount of oil the diff will receive before the oil begins to drain out of the fill hole. I had shims in the past and had to park on a decline in order to get all three quarts in.
     
  9. Jan 24, 2013 at 9:58 PM
    #9
    KenLyns

    KenLyns 8.75" Third Member

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    ^You could always pour through the breather fitting.
     

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