rpo codes

  1. C

    Rpo code zy3 2 tone paint question (ANSWERED)

    Hey all, sorry to be a nuisance but I’m hoping someone can help me, in the process of restoring my 1989 Chevy k1500 Cheyenne Extended Cab I was going through and decoding my rpo codes. I did this a little bit when I first got the truck and noticed it was originally a 2 tone truck. I have come...
  2. T

    Hey yall. Looking for some info

    Hey yall trying to get some info on my truck. It's a 97 c1500. My rpo codes ain't really telling me much. Anyone able to tell me what they all are.
  3. D

    4L80e in a k1500 from factory

    I was looking at the RPO codes in the glove box and noticed i have the code MT1, truck is a k1500 with 6600 lbs GVWR and a bunch of heavy duty options By looking at a bunch of threads it seems like it would be impossible, that the auto 1500s only came with 4L60 but behold the RPO sticker :
  4. TwistedTahoe

    RPO codes

    My tahoe's glovebox sticker is all smudged up and I need my rpo codes for brakes and an axle replacement coming up soon. I tried going to my local GM dealer and asking for its sheet but they only go as far back as 2003. That's great if I have an 03 but my Tahoe is a 99. Is there any way I can...

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