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Axle Question

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by RAY, Jan 6, 2001.

  1. RAY

    RAY 1/2 ton status Premium Member

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    Location:
    Austin, Texas
    On my options list there is a code "GQ1" and in my shop manual it says "axle ratio - stud Rr. Does anyone know what this means?
    Thanks
     
  2. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    These are the only codes I am aware of. Late model K5s don't have the numbers explained, just a list. I have an '82 and says right on the glove compartment what it is along with the number.

    This is from a post Derf00 made a while back
    GU2 = 2.73
    GU4 = 3.08
    GU6 = 3.42
    GT4 = 3.73
    GT5 or GT8 = 4.10
    G80 = Gov-lock




    K5:Big, slow, and flys through snow. [​IMG]<P ID="edit"><FONT SIZE=-1>Edited by Blazer_Boy on 01/07/01 02:54 PM (server time).</FONT></P>
     
  3. HarryH3

    HarryH3 1 ton status Author

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    A quick look at the '91 GM truck manual shows that RPO GQ1 is "Rear Axle - Base Ratio". No explanation about what that actually means. [​IMG]

    <font color=black>HarryH3 - '75 K5</font color=black>
    <A target="_blank" HREF=http://ThunderTruck.ColoradoK5.com>http://ThunderTruck.ColoradoK5.com</A>
     

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