Silverado RPO codes

I have decoded all but a few RPO codes for my truck and am having a problem finding the last few. Do any of you know these or a web site that would explain these?

EVA
OSG
SLM
VXS
V73
X88
YD3
ZY1
1SC
1SZ
11U
12I that is 12 and letter I
122
6MT
7MT

I found a few sites and they have some conflicts but these are the last of what I am looking for. Any help would be appreciated. :bigthumb:

I can't help you, but where can I find all the codes for mine?

Open your glove box and the tag has all the 3 letter/digit codes.

I had the dealer print the codes out but he wouldn't decode them for me.

Yeah, how'd you decode them?

Give me your list and I will decode for you.

EVA- test DVT,evap. emission requirement
OSG- Plant code, Oshawa,Ontario Canada
VXS-Vechicle complete
V73-Vechicle statement USA/Canada
X88- Conversion nameplate Chevrolet
ZY1-Tire spare LT215/85R16/D BL R/PE ST TL Hwy
11U- primary color exterior pewter metalic
12I-interior trim cloth graphite
122- trim combonation, leather graphite (2)

Can't find a damm thing on those other codes. SLM,YD3,1SC,1SZ,6MT,7MT

And forthe one I forgot to put on the list

SLM

Thanks A Lot!!!!

Blendwizard, sorry I thought you were asking where to find them... :dupe: