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Thread: rear end oil
          
   
   

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  1. 09-18-2007 05:53 PM #1
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    texas72
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    rear end oil

     



    I just put 3.73 gears in a ten bolt rear end on my 71 chevelle and I was wondering what type and weight of oil to use???
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  3. 09-18-2007 06:20 PM #2
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    erik erikson
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    Quote Originally Posted by texas72
    I just put 3.73 gears in a ten bolt rear end on my 71 chevelle and I was wondering what type and weight of oil to use???
    80/90 weight.
    You use dyno oil or syth. or you can mix them.
    If it is a posi. make sure you add an oil suplement for the posi. clutch's.
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  4. 09-18-2007 06:56 PM #3
    Dave Severson
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    Quote Originally Posted by erik erikson
    80/90 weight.
    You use dyno oil or syth. or you can mix them.
    If it is a posi. make sure you add an oil suplement for the posi. clutch's.

    While on the topic, just curious.... What synthetic are you guys using in the differential and tranny (manual, not them slush-box thangs! )??
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  5. 09-18-2007 08:12 PM #4
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    Red Line 75/90......Good stuff....
    Our race team page

    Chuck
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  6. 09-18-2007 08:22 PM #5
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    Good question, I am just getting ready to fill up the S10 rear in my T. Do you guys just recommend the same thing? I was going to go to the Chevy parts dept, but maybe not necessary??


    Don
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  7. 09-19-2007 07:00 AM #6
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    Royal Purple Max Gear 75W90. No need for any clutch additives with this one ........

    Kitz
    Jon Kitzmiller, MSME, PhD EE, 32 Ford Hiboy Roadster, Cornhusker frame, Heidts IFS/IRS, 3.50 Posi, Lone Star body, Lone Star/Kitz internal frame, ZZ502/550, TH400
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  8. 09-19-2007 08:36 AM #7
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    Question

     



    I'm using Valvoline 85W140. 3:70 Posi. Is that not a good thing.Label says for high temp.,performance, and anti slip recommended.
    Don D

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  9. 09-19-2007 08:48 AM #8
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    The gears usually come with the required oil info for them,if a swap was done.
    Its gunna take longer than u thought and its gunna cost more too(plan ahead!)
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  10. 09-20-2007 06:37 PM #9
    JerBob
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    Quote Originally Posted by Dave Severson
    While on the topic, just curious.... What synthetic are you guys using in the differential and tranny (manual, not them slush-box thangs! )??
    I am using AMSOIL fluids in mine. 0w30 in the engine, Supershift in the trans. and severe gear in the rear (no need for additive).
    Last edited by JerBob; 09-20-2007 at 06:40 PM.
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  11. 09-20-2007 07:33 PM #10
    Dave Severson
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    Looks like most using synthetics are using the same one's I've tried... We run the Red Line in both drag cars, never have had a problem with either. Last winter had the center section out of them, gears looked great! Just curious if anyone had any first hand bad experience with the synthetics and what their experience has been with their chosen brand.... I haven't used dino oil in anything for years....
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  12. 10-02-2007 06:46 PM #11
    JerBob
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    Quote Originally Posted by Dave Severson
    Looks like most using synthetics are using the same one's I've tried... We run the Red Line in both drag cars, never have had a problem with either. Last winter had the center section out of them, gears looked great! Just curious if anyone had any first hand bad experience with the synthetics and what their experience has been with their chosen brand.... I haven't used dino oil in anything for years....
    I have never had a bad experience with synthetics. I have used Mobil1 in the past, but switched to AMSOIL since they back their products up with a guarantee. Every one of their products have worked well for me. After a couple of years, of AMSOIL usage I decided to become a dealer.
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