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option code question?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by JAKDUPBLUK5, May 21, 2003.

  1. JAKDUPBLUK5

    JAKDUPBLUK5 Registered Member

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    Location:
    WA, USA
    what are the option codes or letter/numbers of the vin as listed in the glove box that would indiacte 3.42 or 3.73 gear ratios and whther or not i have limited slip rear on my '87 k5 with 5.7 tbi? /forums/images/graemlins/k5.gif
     
  2. 87BrnRsd

    87BrnRsd 1/2 ton status

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    Location:
    Boone, North Carolina
    I dont know about yours, but on my 87 in the glovebox, beside the code number it says "3.42 ratio" and "locking rear differential" as the options. My K5 is quite a ways from my house right now, but if I make a trip out to see it within the week, I will look at my code numbers for 3.42's and locking differential for you.
    -Harrison
     
  3. BrianDamage

    BrianDamage 1/2 ton status

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    Location:
    Alabama
    GU6 : AXLE REAR, 3.42 RATIO

    G80 : AXLE POSITRACTION, LIMITED SLIP
     

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