Hi,
just saw this post,
please consider getting the 6.0 liter engine.
It comes in the 1/2 ton Yukon XL Denali and the 3/4 ton models (Yukon XL and Suburban).
Mine has the 4.10 rear end, which is a litle zippier than the 3.73 rear.
This way you can also get the liftgate problem solved.
P.S.
GM has crate engines up to 600 CID.
What would you do with the drivetrain?
Take care, Eggert
