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option code question?

Discussion in 'The Garage' started by JAKDUPBLUK5, May 21, 2003.

  1. JAKDUPBLUK5

    JAKDUPBLUK5 Registered Member

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    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. dyeager535

    dyeager535 1 ton status Premium Member

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    Anything starting with "G". Some years of trucks had the actual code preceeded by another letter or number, but it would be the last 3 you ae concerned with.

    G80 is the GM-wide designation for limited slip for instance, although in the trucks it was a gov-lock for the most part.

    Plenty of RPO decoders on the web, personally I like the one in the tech section over at www.gnttype.org
     
  3. JAKDUPBLUK5

    JAKDUPBLUK5 Registered Member

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    thanks man.That website was just what i needed. i was just rying to figure out if i had 3.73's or 3.42's and if i had posi erc. now i know i have 3.73 posi.. . /forums/images/graemlins/k5.gif rawk on eh?
     

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