Well I found the console lid for my car in the spare carrier and I decided to run the RPO codes.....But some of them either said "Error: code not found" or gave me a bunch of "??????" instaed of decoding. Does anyone know what the following codes are for an 84 T/A

55p - stands for the gold colored rims
19m - black lower accent
17b - is the code for the Charcoal cloth seats
yt9 - OPTION PACKAGE, FISHER FURNISHED PARTS
wy6 -is a suspension package, it's the same as WS6 but with something removed. I think it's the Posi rear end but I'm not sure.
ncd -error
e6e - SLEEVE, SPEEDOMETER GEAR
d1c ?????

Google GM RPO codes. That worked best for me.........

I have some PHS documentation for my 84 ta. Might have some answers you are looking for. Give me a day or two to find it and look through some things. Also 55p, 19m, 17m sound like color codes, YT9 I believe was interior related, the others I'm not sure and will have to look up. I'll see what I can find for ya.

WY6 is a suspension package, it's the same as WS6 but with something removed. I think it's the Posi rear end but I'm not sure.

55P stands for the gold colored rims, 17B is the code for the Charcoal cloth seats and 19M is the black lower accent.