2023 I need advise on the engine. 5.3, 6.2, or Duramax. The last Chevy I owned was a 2008 and the 5.3 was different back then. Before that I owned a 1978 with a 350 and full time 4 wheel drive. Now that 78 was a good truck chain drive transfer case. Yes I am old lol2023 or 24? 5.3L or 6.2L?