Hey, name's Jack. I'm more into older C10s and gas motors but my dad bought a '05 Sierra SLE 3500 with the 6.6/Allison combo. Has a couple mods but pretty stock still, came here to learn about diesel and the NBS platform. It's a light pewter almost silver color with charcoal cloth interior, a 5th wheel hitch setup and 155k miles. How hard is it to swap a denali or escalade dash and door cards? Thanks for lookin.