I don't know enough to say either way. Not sure what's in RAM or GM. Half ton? I think it's very likely the biggest by quite a bit.Me brain small. Are you saying the 3rd gen tundra has the strongest transfer case in the full size pick up market?
I think the original idea was supposed to move tundra and Sequoia to an HD platform but they ended up on the GA-F instead - maybe some components were kept despite going with the lighter platform.

My speculation is that neither aisin or Borg Warner makes a planetary center differential that meets Toyotas durability requirements for the hybrid TTV6 and that's why we don't see an AWD Sequoia or Tundra.