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Rear diff fluid

Discussion in 'Technical Chat' started by accesscab, Dec 13, 2011.

  1. Dec 13, 2011 at 2:02 PM
    #1
    accesscab

    accesscab [OP] Well-Known Member

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    What weight of oil for a 2010 prerunner TRD? And do I need LSD additive?
     
  2. Dec 13, 2011 at 2:03 PM
    #2
    chris4x4

    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.
    You dont need any addative. 75-90 is a good weight, but some folks run 90-140 or 75-140.
     
  3. Dec 13, 2011 at 2:07 PM
    #3
    accesscab

    accesscab [OP] Well-Known Member

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    Does it need to be synthetic
     
  4. Dec 13, 2011 at 2:08 PM
    #4
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    4.10 gears, sliders, and lots of buttons.
    Nope. Use your favorite gear lube.
     
  5. Dec 13, 2011 at 2:12 PM
    #5
    Lost_Humanity

    Lost_Humanity Bad decisions make great stories.

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    I was just talking to my local wrench (he's been working on my family's cars and trucks for 20 years) and he told me that unless we've got positraction (LSD) rear diffs or we do a lot of towing, that there's no need to change the diff fluids.

    What gives? Oh, and he said not to use synthetic ever.
     
  6. Dec 13, 2011 at 2:14 PM
    #6
    DigB

    DigB Go Jets GO!!!!!!

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    I'd also like to know if I can use synthetic. I was told I could and it would help in the winter by making it easier to move thus improving gas mileage as that takes a hit with the winter gas.
     
  7. Dec 13, 2011 at 2:31 PM
    #7
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    You NEED To change the fluid every 30k miles, or so. Synthetic is fine in the rear and front diffs of these trucks.
     
  8. Dec 13, 2011 at 4:41 PM
    #8
    DigB

    DigB Go Jets GO!!!!!!

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    I figured Synthetic was ok. I knew I had to change it but its good to have clarification on the type of fluid I can use.
     
  9. Dec 22, 2011 at 12:57 PM
    #9
    Pugga

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

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    Any issue with using synthetic in the x-fer case? I'm assuming no but figured it couldn't hurt to ask and if I'm going to buy stuff, I'm doing it all with the same stuff... :eek:
     
  10. Dec 22, 2011 at 2:19 PM
    #10
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    4.10 gears, sliders, and lots of buttons.
    Nope. Run it all the time in the vehicles that call for regular gear oil.
     
  11. Dec 22, 2011 at 2:21 PM
    #11
    hetkind

    hetkind Well-Known Member

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    bilstein set at 1.75, Racho 5000 rear with 4 leaf kit, floor mats, high lift jack, pull hook in hitch, bed rail corner braces, severe duty brake pads and devil horns on the grill....
    I buy the five gallon buckets of GL-5 80w-90 at the FLAP...I like the valvoline, castrol or the Citco brand best, but must have a 10 empty buckets of various brands of gear oil around...
     
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