axle ratio
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2008-2013 Cadillac CTS Performance Mods Discussion, axle ratio in Cadillac CTS Second Generation Forum - 2008-2013; The rpo code list for my car has a G80 DIFFERENTIAL, LIMITED SLIP and GU5 AXEL REAR, 3.23 RATIO. Does ...
  1. #1
    jimtreber is offline Cadillac Owners Member
    Join Date
    Jun 2005
    Posts
    30

    axle ratio

    The rpo code list for my car has a G80 DIFFERENTIAL, LIMITED SLIP and GU5 AXEL REAR, 3.23 RATIO. Does this mean there are other ratios for the cts or 3.23 is for all?

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  3. #2
    ncscons is offline Cadillac Owners Fanatic
    Automobile(s): 2011 CTS 3.6 AWD
    Join Date
    Nov 2009
    Posts
    135

    Re: axle ratio

    Pretty sure 3.23 is for the AWD so the fuel economy is closer to the RWD car. The RWD has a shorter rear end but I can't remember the number. Maybe 3.73?

  4. #3
    cawengr's Avatar
    cawengr is offline Cadillac Owners Fanatic
    Automobile(s): 2011 CTS Performance Coupe -3.6 DI 6 Speed Manual
    Join Date
    Apr 2005
    Location
    Oak Lawn Il.
    Posts
    187
    The performance option with rear wheel drive is a 3:73 posit reaction rear end

  5. #4
    jimtreber is offline Cadillac Owners Member
    Join Date
    Jun 2005
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    30

    Re: axle ratio

    Would the 3.73 be for both manual and automatic transmissions?

  6. #5
    pinkguy is offline Cadillac Owners Member
    Automobile(s): '09CTS 3.6DI RWD GoldMist/Cashmere
    Join Date
    Aug 2010
    Location
    Augsburg / Germany
    Posts
    56

    Re: axle ratio

    Hi to all
    let me throw in, what I have seen in writing.
    I got two build sheets, 2011 CTS 3.6DI 6sp-AT Wagon RWD and 2011 CTS 3.6DI 6sp-AT Coupe, RWD
    Both had RPO G80 for Limited Slip Positraction.
    The Coupe lists RPO GT4 for 3.73 rear ratio
    The Wagon lists RPO GU6 for 3.42 rear ratio

    pinkguy

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