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Changing differential fluid - A step by step "HOW TO"

Discussion in 'Technical Chat' started by brianr, Jan 21, 2009.

  1. Apr 7, 2013 at 4:45 PM
    #1301
    Jetman1979

    Jetman1979 Well-Known Member

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    Ok let me ask this on the fill of the transfer case and front diff and manual gearbox can I fill all these till it starts coming out of the fill hole? I am the most worried about the transfer case and front diff. My truck has 72 thousand and I am going to make a 1500 mile trip to California next week or so.
     
    Last edited: Apr 7, 2013
  2. Apr 7, 2013 at 5:22 PM
    #1302
    ImpulseRed008

    ImpulseRed008 Gone But Not Forgotten

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    Put in the amount listed in your OM.
     
  3. Apr 7, 2013 at 8:58 PM
    #1303
    ouyin2000

    ouyin2000 Well-Known Member

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    Which is until it comes dribbling out the fill hole... haha :)
     
  4. Apr 7, 2013 at 9:16 PM
    #1304
    OffroadToy

    OffroadToy The dingo ate it...I swear!

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    Wrong^
    Toyota put the fill hole at that location for a reason...you fill until it starts to drain out of the hole. The amounts given in the owners manual are the same called out in the Chiltons manual. They say the capacities called out are "approximate" and to add as necessary to bring to appropriate level.. which they say to be at the bottom of the plug opening. In addition, the Toyota Factory Service Manual calls to add as nessesary to get the level within 5mm (0 to 0.20 in.) of the bottom of the filler plug opening.
     
  5. Apr 8, 2013 at 7:29 AM
    #1305
    Jetman1979

    Jetman1979 Well-Known Member

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    Thats the answer I was hoping for fill till plug the old school way:)
    Thanks for the clarification.
     
  6. Apr 8, 2013 at 7:42 AM
    #1306
    Jetman1979

    Jetman1979 Well-Known Member

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    I am new to 4x4 so I read your links you posted on 4x4 use. Very good info thanks.
     
  7. Apr 10, 2013 at 9:35 PM
    #1307
    skygear

    skygear                    

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    I dropped my spare tire so I could sit under there and fill with the Mobile 1 75W 90 - I saw the fluid already had the LSD additive in it too.
     
  8. Apr 11, 2013 at 3:22 AM
    #1308
    Janster

    Janster Old & Forgetful

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    It DOES NOT have the additive in it.

    It only means that it is compatible for LSD diffs.
     
  9. Apr 11, 2013 at 4:05 AM
    #1309
    skygear

    skygear                    

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    Either way, I have the TRD OR so not required according to another post.
     
    Last edited: Apr 11, 2013
  10. Apr 11, 2013 at 4:39 AM
    #1310
    skygear

    skygear                    

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    Last edited: Apr 11, 2013
  11. Apr 11, 2013 at 11:34 AM
    #1311
    Drunknsloth

    Drunknsloth Indffrnce will be the fall of manknd but who cares

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  12. Apr 11, 2013 at 9:12 PM
    #1312
    maxamillion2345

    maxamillion2345 Go home if you don't like guns liquor and whores.

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    Tuner.
    The fuck does that mean? It's compatible but doesn't have the additive in it? What? Is there a 75w-90 GL5 oil that isn't compatible (excluding additives)? Theres not a LS spec'd oil if you're not including the friction modifiers. It's the same gl5 every other diff uses but with friction modifiers.

    Not only are you wrong but that doesn't even make any god damn sense.

    Mobil 1 Synthetic Gear Lube LS 75W-90 contains special friction modifiers designed for limited slip-type differentials. In most applications, the addition of special LS (limited slip) additives is not required. For axles requiring the highest level of limited-slip performance, OEM specific LS additives can be added to this fluid.
     
    Last edited: Apr 11, 2013
  13. Apr 11, 2013 at 11:09 PM
    #1313
    skygear

    skygear                    

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    Awesome, thats the educated answer I needed!
     
  14. Apr 13, 2013 at 6:06 AM
    #1314
    Rusty 06 4x4

    Rusty 06 4x4 NBHNC

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  15. Apr 13, 2013 at 10:42 AM
    #1315
    Normantaco

    Normantaco Well-Known Member

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    My truck is just about to hit 30k. Did front, rear and xfer case this morning. Thanks for the great write up. I think i found a new cologne, that stuff smells awesome. And just for good measure, How do i know if i need to add LSD additive? I kid. Just figured I'd throw that question in this thread for the 500th time.
     
  16. Apr 13, 2013 at 12:29 PM
    #1316
    ImpulseRed008

    ImpulseRed008 Gone But Not Forgotten

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    Read the first post in the thread
     
  17. Apr 13, 2013 at 5:00 PM
    #1317
    OffroadToy

    OffroadToy The dingo ate it...I swear!

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    Is that qt that says limited slip friction modifier included something new? All i've ever seen is the qts that say LS and like Janster mentioned it just meant it's compatable... you could use it for both LS and non LS rear ends... additional friction modifier is required when applicable.
     
    Last edited: Apr 13, 2013
  18. Apr 13, 2013 at 5:16 PM
    #1318
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Janster is correct. Most gear oils say "LS", and the "LS" simply means they are compatible for use in an LS diff, but they dont have the addative in them. Unless the bottle actually states the addative is in it.
     
  19. Apr 14, 2013 at 11:20 AM
    #1319
    Janster

    Janster Old & Forgetful

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    Interesting...this might be something totally NEW. I've been using Mobile 1 for 15 years and never seen anything like that before.

    But in all seriousness.... Look at the back of the bottle. Compare the labels.

    If the label on the 'Additive included' is the exact same label (on the back) as the LS (or non LS) bottle.... then, they're the same product.

    If it doesn't specifically mention something about a friction modifier (on the back of the bottle) - then it doesn't have it. I actually emailed Mobile 1 many many years ago questioning them about the labeling of LS versus non LS labeled bottles. As I suspected - it is the same product (LS and non labeled bottles).
     
  20. Apr 14, 2013 at 2:32 PM
    #1320
    maxamillion2345

    maxamillion2345 Go home if you don't like guns liquor and whores.

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    That doesn't make any sense. If it's compatible for LS diffs and says LS it's going to have friction modifier in it. If it's GL5 then it's compatible with the diffs (LS and otherwise with the exception of friction modifier) and theres no sense in putting LS on the bottle unless it has friction modifier in it. Theres no special specd oil for LS' aside from friction modifiers. The LS diffs are specd for GL5 oil with a friction modifier, the open diffs are specd for GL5, theres no difference aside from friction modifier.

    I don't know how they did it in the days of old but Mobil 1 and Valvoline products contain friction modifiers already, you can find the info on their websites.


    It does, which makes her incorrect.

    Which is about par for the course for her which is why I'm being such a dick about it. Misinformation.
     
    Last edited: Apr 14, 2013
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