Not to beat a dead horse, but here are the links I use for this info...
VIN : https://chevroletforum.com/forum/vindecoder.php
RPO Codes : https://d354nuoz4t18d4.cloudfront.net/151587b49e7f6970ff59f6f339b177de/images/custom/rpoCodes.pdf
(although I LOVE the idea of a build sheet sent by GM! Thanks for that tip.. I'll be looking into it!)
Bought this gem in March ... it's my second 'rado. (first is a 98 Z71 ext cab)
looking for the right wheels...
will upgrade to leather seats.
MAY level it out.
need to upgrade the stereo... (sounds too mono... possibly add maps)