Very flexible on price and I can drive (a reasonable distance) to meet!
Selling a transfer case out of a 2018 Yukon XL. This is the single speed option (this is for you if your 4WD selector has only three options with no 4L) with RPO code NP0; the tcase model is MP3010.
This specific tcase is a match for any single-speed tcases in Chevy or GMC trucks and SUVs back to 2010 with the 6L80 transmission. This fits in up to 2018 trucks and up to 2020 SUVs.
Pulled from the truck so that I could swap over to a two-speed NQH transfer case. This case has 150k miles on it; 4wd has been used sporadically but often enough that there are no issues shifting the transfer case. It had absolutely no problems or leaks when removed, other than a bit of fluid that came out because I tilted it over too far and it came out the breather tube.
Let me know if you need more information or photos.