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What do my "G" codes say?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by bigreid, Feb 12, 2003.

  1. bigreid

    bigreid Registered Member

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    What do my \"G\" codes say?

    dyeager535 gave me some great info about 33.10.5r15 on my stock burb. He mentioned gears and my G codes, My codes are GT4 and G80 does this mean I have 3.08 gears?
    Thanks,
    Adam
     
  2. nvrenuf

    nvrenuf NONE shall pass! Premium Member

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    Re: What do my \"G\" codes say?

    GT4 = 3.73 ratio

    G80 = positraction, limited slip

    /forums/images/graemlins/thumb.gif
     
  3. Mikeyg79

    Mikeyg79 Registered Member

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    Re: What do my \"G\" codes say?

    Where did you find those codes? I'm trying to find out what gears came in my '84 K20HD.
     
  4. heavy4x4

    heavy4x4 1/2 ton status

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    Re: What do my \"G\" codes say?

    The RPO codes are on a sticker on the inside of the glovebox door. Once you have your codes (just need the ones starting with "G" if you're looking for axle ratio), search google for "GM RPO codes"
     
  5. R72K5

    R72K5 Banned

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    Re: What do my \"G\" codes say?

    for the hay of it:

    and M codes are tranny codes, L codes are engine codes, N codes are steering codes, K codes are usually air cleaner and realted codes, B codes are usually exterior trim codes, Y and Z are usually truck package level codes, V codes are usually bumper codes, P codes are usually wheel and related codes, A codes are usually glass related codes, C codes usually heating and air related codes,
     
  6. Polaris

    Polaris 1/2 ton status

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    Re: What do my \"G\" codes say?

    Take those codes from the glove box sticker and go here: rpo codes
     
  7. Mikeyg79

    Mikeyg79 Registered Member

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    Re: What do my \"G\" codes say?

    Man, now if I just had that sicker in the glove box....
    You can't find them anywhere else can you?
     
  8. wrathORC

    wrathORC 1/2 ton status

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