Need help with transmission and rear Diff
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This is a discussion on Need help with transmission and rear Diff within the Transmission & AWD forums, part of the Tech & Modifying & General Repairs category; Okay guys this weekend I will be going to the tracks and I really want to change the rear diff ...

  1. #1
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    Need help with transmission and rear Diff

    Okay guys this weekend I will be going to the tracks and I really want to change the rear diff and transmission fluid but I don't know what brand to use? Would it be okay if I go with royal purple 75-90? I know the redline stuff works awesome but I won't be able to get it in time for the weekend. And also how many quarts goes in the transmission and in the rear diff?

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  3. #2
    and the Funky Bunch Calvinball's Avatar
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    >>Tranny Fluid Info and Experimenting Thread<< (Amsoil, Redline, USC, etc.)

    I'm sure some senior members will come in with some suggestions, but that's probably a good place to start researching
    - Will
    First Mods: What to do and what not to do
    Current Car: 2014 Golf TDI
    Previous Cars:2012 WRB WRX Hatch, 2004 RSX-S, 1998 Grand Prix GTP
    "Isn't it amazing how smart you feel when you just aren't being stupid?"

  4. #3
    Registered User DiRty Impreza's Avatar
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    4.3 qts. tranny .8 qts. rear diff. for STi
    ++ + ++P3LLA++ + ++

    06 STi ( Stage II ) BOOSTED
    HAWK-EYE ALLIANCE # 808

  5. #4
    Registered User Ruh Roh's Avatar
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    Quote Originally Posted by john_wrx04 View Post
    Okay guys this weekend I will be going to the tracks and I really want to change the rear diff and transmission fluid but I don't know what brand to use? Would it be okay if I go with royal purple 75-90? I know the redline stuff works awesome but I won't be able to get it in time for the weekend. And also how many quarts goes in the transmission and in the rear diff?
    check your owners manual for fluid levels

  6. #5
    Registered User nsibanez's Avatar
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    I've been told Motul is good. So is Redline.
    Then some people mix one quart of this per 2 quarts of that.

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