I was able to transfer over from my 2020 LTZ the Bak Revolver X4 tonneau cover, my under rear seat steel safe and my Blendmount radar detector mount and mirror tap. Left a 6.2l gas(which I loved) and now trying out the 3.0l diesel.
Have a buddy who bought a 2024 ZR2 with the baby Duramax! He loves it, his old truck was a 6.2 and after 100k and 6 years the dreaded valve failure got him. That is the 3rd person I know who that has happened to. Good that you left the 6.2 alone.