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Gear Oil Suggestions

Discussion in '1st Gen. Tacomas (1995-2004)' started by Carolina, May 7, 2017.

  1. May 7, 2017 at 8:23 AM
    #1
    Carolina

    #1
    Carolina [OP] Member

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    I've got a 2003 Tacoma V6 4x4 with locker, looking to change rear diff fluid.
    Manual says gl5 sae 90 hypoid, I can't find it at local auto parts store, I looked on Royal Purples web site and they only have it in 5 gal. Buckets.
    Can I use a different sae??? Should I use any additives???

    Also I'm getting a whining noise from rear diff, I tow a boat a lot and was wondering if any additive could help quiet it.

    Thanks for any help.
     
    Carolina, May 7, 2017
    #1
  2. May 7, 2017 at 3:31 PM
    #2
    QMEDJoe

    #2
    QMEDJoe Proverbs 3:5-6

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    Fox 2.0 Coilovers in the front and Fox 2.0’s in the rear, Total Chaos UCA’s, Al-lpro expo leafs, K&N cold air intake, TRD headers,Magnaflow catback exhaust,URD short throw shifter, switched out my 60/40 bench seat for some Tacoma Limited seats, Replaced the vinyl shift boot for a leather one, completely soundproofed the cab w/ Frost King. Replaced stock radio with a Pioneer AVH series head unit. Focal component system w/a 10" sub powered by 2 Alpine amps. Weathertech floor mats. Line-X'd the bed. SCS Ray 10’s, Installed an A.R.E. MX series camper shell. All-Pro Apex front bumper w/ All-Pro skid plates all the way back to the Trans. Low Range fuel skid plate.
    Ask East Coast Gear supply about what type of oil to use for lockers, I know they suggest a different type. They've been in the business for a long time and deal a lot with Tacoma's. I don't have lockers but just replaced all my oils about a month ago

    IMG_1382.jpg
     
    QMEDJoe, May 7, 2017
    #2
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  3. May 7, 2017 at 3:32 PM
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    smmarine

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    smmarine Well-Known Member

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    smmarine, May 7, 2017
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  4. May 7, 2017 at 6:37 PM
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    Beee1985

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    Beee1985 Well-Known Member

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    Beee1985, May 7, 2017
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  5. May 7, 2017 at 7:33 PM
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    ThunderOne

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    ThunderOne Well-Known Member

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    Last edited: May 7, 2017
    ThunderOne, May 7, 2017
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  6. May 7, 2017 at 7:38 PM
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    Dragons Taco

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    Dragons Taco Well-Known Member

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    Dragons Taco, May 7, 2017
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  7. May 7, 2017 at 7:40 PM
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    taco terror

    #7
    taco terror 1st gen = best gen

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    4.56 ECGS regear, Wheelers 6 leaf pack, Eibach coils, Bilstein 5100s, AR Baja wheels, 33 BFG ATs, Line-x
    ECGS told me to run Lucas when they did my regear, I don't have a locker though.
     
    taco terror, May 7, 2017
    #7
    QMEDJoe and Dalandser like this.
  8. May 8, 2017 at 12:40 AM
    #8
    1HItaco

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    1HItaco Well-Known Member

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    1HItaco, May 8, 2017
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  9. May 8, 2017 at 5:05 AM
    #9
    nzbrock

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    nzbrock Well-Known Member

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    Ecgs actually suggest 85w140. They have a tech article on their site about it.
     
    nzbrock, May 8, 2017
    #9
    boostedka and QMEDJoe like this.
  10. May 8, 2017 at 5:54 AM
    #10
    QMEDJoe

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    QMEDJoe Proverbs 3:5-6

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    Yep, someone had told me that in a thread but I forgot the weight classification #'s
     
    QMEDJoe, May 8, 2017
    #10
  11. May 8, 2017 at 8:17 AM
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    ThunderOne

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    link?
     
    ThunderOne, May 8, 2017
    #11
  12. May 8, 2017 at 8:27 AM
    #12
    nzbrock

    #12
    nzbrock Well-Known Member

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    Well I thought there was an article specifically about gear oil, but I guess not. It mentions it in their gear break in procedure. http://eastcoastgearsupply.com/ft-1479-new-gear-break-in-procedure.html
    I also spoke with a tech on the phone and he suggested 85w140 since it will cushion the gears better. I don't really see any downside to a heavier oil other than creating more drag and potentially lowering fuel economy. If you live in a very cold location then you may want a thinner oil.
     
    nzbrock, May 8, 2017
    #12
    ThunderOne[QUOTED] and QMEDJoe like this.
  13. May 8, 2017 at 4:37 PM
    #13
    Carolina

    #13
    Carolina [OP] Member

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    Thanks for the info fellas.

    Emailed ECGS and it sounds like my pinion bearing is going and they recommend getting it looked at before it fails.

    Sooo it sounds like I'm going to be looking for a mechanic, any idea what this will cost???
     
    Carolina, May 8, 2017
    #13

Products Discussed in

Mobil 1 104361 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
$29.13
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