APT, thanks for that, learned the new gear box (Automatic) ratios
What matters is the effective ratio to pavement
'Shorter spacing' is called 'close ratio' for automotive gear boxes
Used to be only pure track stuff to keep the ICE in it's best portion
of it's power curve...so that the next gear change will keep the ICE
as close to that portion of it's torque curve
Still think the OP is at to over the 'true' MTWR. He wants a crew cab,
so lots of stuff going in/on (people, pets, ice chest, etc) that then
reduces the MTWR, or as GM seems to be listing it as 'TWR' these days