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rpo codes

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    2007 LT build codes

    Trying to decipher build codes on my ‘07 LT. Found all but these codes: Code 19D 19I 1LT 50U 6SH 7SF NP3 R4Y R6K R9M R9X SLM V43 Can anyone fill in the gaps for me? Can’t find these anywhere. Thanks in advance.
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    RPO Codes 2002-2010 **Listed**

    Can someone "sticky" this to the top? Here is a "mostly" complete list of RPO (Regular Production Options)codes Based on model year.  You can find your "RPO" code list on the inside of your passenger glove box door.  2007 & up lists can be found here: Chevrolet Avalanche Zone 2007-??? This...