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

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

Page 33 of 139
  1. Jan 3, 2011 at 9:36 AM
    #641
    chris4x4

    #641
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
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    4.10 gears, sliders, and lots of buttons.
    I use regular "Dyno" oil, and the LS addative mentioned in the first post. Being as I tow, and frequently have the rear submerged, I change it every 15 to 20k miles.
     
    chris4x4, Jan 3, 2011
    #641
  2. Jan 4, 2011 at 7:06 AM
    #642
    BlueT

    #642
    BlueT Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    So after 7000 miles after going to synthetic on my Limited Slip Differential I still have no problems (no grinding sounds). I got chance to fully test it on incline to confirm that it still works. Truck had one wheel on pure ice and other on solid ground and climbed 5-10 degree hill with slight wheel slip.

    So anybody who has factory clutchpack Limited slipp, if you want to go to synthetic, following combination works very well. Mobil Delvac
    $29 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
    75W-90 plus two 4 oz GM additive bottles (thanks to NAAC3TACO for part number)
    :D
     
    BlueT, Jan 4, 2011
    #642
  3. Jan 18, 2011 at 9:21 AM
    #643
    boxxed

    #643
    boxxed Well-Known Member

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    I have tired searching and reading but I cant fine the thread on changing the front diff and transfercase.. Could someone please be so kind and point me the right direction?
    Thanks
     
    boxxed, Jan 18, 2011
    #643
  4. Feb 1, 2011 at 7:00 PM
    #644
    11B4X4

    #644
    11B4X4 Well-Known Member

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    Yeah what he said!!!
     
    11B4X4, Feb 1, 2011
    #644
  5. Feb 7, 2011 at 2:43 PM
    #645
    FTB530

    #645
    FTB530 Well-Known Member

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    So do you think stock from factory the taco 2nd gen had dyno oil in the differentials? im going to change mine in a couple of days and didnt know if i should use the synthetic or not .
     
    FTB530, Feb 7, 2011
    #645
  6. Feb 7, 2011 at 2:57 PM
    #646
    chris4x4

    #646
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
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    4.10 gears, sliders, and lots of buttons.
    Synthetic is fine. Its a myth that switching to Syn. can cause leaks.
     
    chris4x4, Feb 7, 2011
    #646
  7. Feb 8, 2011 at 7:31 PM
    #647
    jeffcos

    #647
    jeffcos Well-Known Member

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    X3!!!
     
    jeffcos, Feb 8, 2011
    #647
  8. Feb 13, 2011 at 9:47 PM
    #648
    Jerry299

    #648
    Jerry299 Well-Known Member

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    Why did u decide to use two of the additive bottles? or is that what toyota calls for?
     
    Jerry299, Feb 13, 2011
    #648
  9. Feb 15, 2011 at 12:29 AM
    #649
    FTB530

    #649
    FTB530 Well-Known Member

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    level kit,air raid intake,
     
    FTB530, Feb 15, 2011
    #649
  10. Feb 15, 2011 at 12:31 AM
    #650
    FTB530

    #650
    FTB530 Well-Known Member

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    I changed the oil in my front and transfer case,there is two plugs on each,top fill ... bottom drain,seemd self explanitory to me,i guess if i did it wrong ill be buying new gears , but i think that its was done correct.
     
    FTB530, Feb 15, 2011
    #650
  11. Feb 16, 2011 at 2:17 PM
    #651
    buckeyeguy

    #651
    buckeyeguy Member

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    Thanks for the write up and pics! I've never changed diff fluid before and I must say its easier than an engine oil change. However, I don't think I'll go with RP next change. It was a bit pricey at $18/qt.
     
    buckeyeguy, Feb 16, 2011
    #651
  12. Feb 17, 2011 at 10:16 AM
    #652
    Brunes

    #652
    Brunes abides.

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    Doing mine this morning (only 5K late...)

    How bad was the metal sludge on the mag plug for anyone with the mechanical LSD and what do you guys think of this sliver:
    [​IMG]
     
    Brunes, Feb 17, 2011
    #652
  13. Feb 17, 2011 at 10:30 AM
    #653
    mach1man001

    #653
    mach1man001 eh whatever

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    Pic didn't work.
     
    mach1man001, Feb 17, 2011
    #653
  14. Feb 17, 2011 at 10:36 AM
    #654
    TacoFMS

    #654
    TacoFMS Bubble bubble bubble pop

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    One or two things modded... Check out the build thread
    ok so ive been reading this post for about 30-45 mins now and everyone seems to be talking about mechanical and electronic lsd's what if you are like me and just have an ole one wheel wonder? anything special i need to know before buying the diff oil? should i go synthetic or stay dino? thanks for the advice.
     
    TacoFMS, Feb 17, 2011
    #654
  15. Feb 17, 2011 at 10:54 AM
    #655
    Brunes

    #655
    Brunes abides.

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    Better now??
     
    Brunes, Feb 17, 2011
    #655
  16. Feb 17, 2011 at 11:18 AM
    #656
    wiscdave

    #656
    wiscdave Lets Do It!

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    mine both front and back were pretty bad.. I didn't notice any slivers, but did have a hunk of junk on the magnets
     
    wiscdave, Feb 17, 2011
    #656
  17. Feb 17, 2011 at 11:56 AM
    #657
    mach1man001

    #657
    mach1man001 eh whatever

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    Yea that works now. I don't see anything I would be too worried about there. Looks OK just part of the clutch material wearing. That is the reason for the magnetic plug.:thumbsup:
     
    mach1man001, Feb 17, 2011
    #657
  18. Feb 17, 2011 at 12:00 PM
    #658
    BlueT

    #658
    BlueT Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    For One if you making picture of particles make on white paper :D
    From picture that does not look bad at all, when you say 5 k Late , how long since the last change and what oil did you run it. I had probably much more particles after 12K running on original factory oil. But I also towed in that 12K
     
    BlueT, Feb 17, 2011
    #658
  19. Feb 17, 2011 at 1:21 PM
    #659
    Brunes

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    Brunes abides.

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    Yeah...I'm pretty familiar with magnetic plugs...The helo has a few of them...

    I didn't have a white paper nearby and the hand gives you some idea of size....

    I'm at 34K and change...It should have been done at 30K. I still had the stock from the factory oil in there until now. This time I used 80W-90 Lucas Gear oil with whatever LSD addative that AutoZone had.
     
    Brunes, Feb 17, 2011
    #659
  20. Feb 20, 2011 at 2:07 PM
    #660
    milanodsp

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    milanodsp Member

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    my 09 ac 4x4 4 cylinder has no LSD sticker on the differential but the window sticker when i bought it said auto LSD. I am thinking I need the additive. Correct? :confused:
     
    milanodsp, Feb 20, 2011
    #660
Page 33 of 139

Products Discussed in

Mobil 1 104361 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
$28.12
Genuine Toyota 90430-24003 Front Differential Drain Plug Gasket
$2.80
Rexka 12pcs Transfer & Differential Service Gasket Kit Compatible with Toyota Lexus 4Runner Land Cruiser Tundra Tacoma FJ Cruiser Highlander RAV4 Sequoia Sienna 1215710010 9043024003 90430A0003
$5.99
Toyota Oil Drain Plug Crushable Steel Gaskets Set of 10 OEM 12157-10010
$13.99
35178-30010
$6.49
PRIME AVE Aluminium Oil Drain Plug Gaskets - Differential & Transfer Case Crush Washer for Leak Proof Sealing - Durable & Reliable Oil Plug Washer - Compatible with Toyota Lexus Scion (25 Pack)
$9.99
GENUINE TOYOTA GASKET KIT FOR TRANSFER AND DIFFERENTIAL SERVICE
$11.98
Mobil 1 104361-UNIT 75W-90 Synthetic Gear Lube - 1 Quart
$15.49
LubriMatic 55-001 4CC Mechanical Fluid Pump for Quart Size Bottles
$7.90
Genuine Toyota - Oil Drain Plug Gaskets (QTY10)
$10.25
Genuine Toyota 90341-24014 Front Differential Drain Plug
$12.21
Lubegard 30903 Gear Fluid Supplement, 8 oz.
$9.99
Genuine Ford Fluid XL-3 Friction Modifier Additive - 4 oz.
$11.99
Sta-Lube Equa-Torque Differential Friction Modifier SL2411-4 fl oz
$14.50
K&W 402508 Trans-X Posi Trac Limited Slip Gear Oil Additive - 7 Fl Oz
$15.69
CUSTOM ACCESSORIES Pennzoil 36670 Pennzoil Fluid Transfer Pump - Quart
$6.43
LUMAX LX-1185 Black 18 oz. Suction Gun with 12" Vinyl Flex Hose. Excellent for Draining and Filling Differentials, Transmissions, Clutches, Gear Cases and More!
$16.32
Sta-Lube Fluid Oil Pump
$20.05
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