2021 GMC Sierra 2500 AT4. Diesel. 4X4. Excellent condition. Low miles - 27k. Has every option including retractable moon roof and heated seats front and back. List of most of the mods are in one of the pictures. Other stuff I’ve done is Banks Derringer programmer (cali legal), Banks ram air intake system and AMP research XL power steps. I’m sure there is something I’m missing. Has clean title,no accidents. Has been a great truck but need to…