Anybody done a level up (not down) and 4x4 with Adj Torsion Keys. What does it do to the ride if anything?

 

Torsion keys do not change ride comfort as long as you keep within recommended adjustment. If you "crank them" as some people suggest if will ride stiff as crap. I have tried this and it sucks. Also it will wear out parts like outer bearings and tie rod ends. So tosion keys should be fine.