vin number and gear ratio

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by gary f, Aug 29, 2012.

  1. gary f

    gary f New Member

    i have just purchased a 2010 silverado and would like to know how to read what the vin number means and how do i find out what my gear ratio is in the rear end.
  2. moogvo

    moogvo Epic Member 5+ Years 1000 Posts

    You have a sticker inside the glove box with your truck's RPO codes. It looks like a bunch of goobildy gook, but each 3 digit code means something and will tell you everything about your truck.

    For a complete list of the GM RPO codes download the PDF at
    Last edited: Aug 29, 2012
  3. dpeter

    dpeter Epic Member 5+ Years 500 Posts

  4. gary f

    gary f New Member

    thanks for thr reply

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