RPO codes on an '88 Formula..?

I was checking up on the RPO codes on my '88 to see what it had from the factory... and came up with a few that I don't reconize. And some of the explanations of the codes need an explanation.. lol.. anyway.. I have:
WS1 6ZW 7ZW 8NL
Anyone have an idea what those are?
Also.. as I said.. some of the meanings confused me.. what are:
B84 Ornamentation, Extr mldg, body side 1SC Package, Option 03
Whats the diff between WS9 MODEL CONVERSION, FORMULA and W66 MERCHANDISED PKG, FORMULA? I have the W66.
And what is 9NL COMPUTER SELECTED REAR RIGHTHAND SPRING?
At the top I have 1G2FS21E1JL238261 2F587 (I know the first part is my VIN, but the second?)
Also at the end I have BCCC WA-L9534 U9537 82B (I am pretty sure the 82B is the Medium dark grey interior.. but I dont know the rest of it.)
Thanks.
--
-Geno
1985 Blue Camaro 2.8L w/T-tops (147k and going.. getting worried though)
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Some are transmission and engine assembly codes, some might be speedo gear codes, and others for "plant use only".
Bottom line: If they don't come up in an EDS Part Imager or Bell and Howell system at a dealership (the codes, that is), they are have "no significance for field use" according to GM.
Joe--ASE Certified Parts Specialist & 10th Ann.Club Tech Director '80 Carousel Red Turbo T/A, 27k orig. '79 "Y89" 400/4 speed 10th Ann. T/A, 57k orig '84 Olds 88 Royale Bgm 2 dr, 307 "Rocket" (lol), 143k and still going.... '91 S10 Blazer 4.3Z
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