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Alxle code questions??

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by BigBad75K5, May 14, 2003.

  1. BigBad75K5

    BigBad75K5 1/2 ton status

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    I did a search on 1G01 axle code and only found a couple of post they both say they think it's a 3.07.
    Can anyone confirm this?
    It's in a 3/4 ton /forums/images/graemlins/burb.gif with a 6.2/T 400.
    Thank's
     
  2. dyeager535

    dyeager535 1 ton status Premium Member

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    Sure thats not GQ1?

    G01 nor GO1 are listed in my '85/86 GM RPO listing, although I've found on some pages that it IS an axle related code, more like a "family" code than an individual axle ratio.
     
  3. BigBad75K5

    BigBad75K5 1/2 ton status

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    It coulg be GQ1, the lable is getting hard to read.
     
  4. dyeager535

    dyeager535 1 ton status Premium Member

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    You'll be able to decode "GQ1" at most any page with a GM RPO decoder, but IIRC, GQ1 is "standard axle ratio" meaning you'll have to find out what axle ratio was standard for your truck, that year, with that engine/tranny combination.
     
  5. R72K5

    R72K5 Banned

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    [ QUOTE ]
    You'll be able to decode "GQ1" at most any page with a GM RPO decoder, but IIRC, GQ1 is "standard axle ratio" meaning you'll have to find out what axle ratio was standard for your truck, that year, with that engine/tranny combination.

    [/ QUOTE ]

    and how do we find out such info for the 80s trucks, the 72 and older trucks are easy to ifnd out that info on, it was 3.73 std across the board cept for big block trucks and some 307 and larger trucks with auto trannies and 4 speeds
     
  6. dyeager535

    dyeager535 1 ton status Premium Member

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    You'll have to get GM literature for your year, or, for those of us with K5's, the slosh.com site has all the dealer brochures that tell you what was stock and optional.
     
  7. BigBad75K5

    BigBad75K5 1/2 ton status

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    Thanks for the help, I'll just pull the cover off and check it out. The gear oil prob needs changed anyway.
     

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