How big is a 2015 2500HD?

Just how big is a 2015 Chevy 2500HD crew cab?
My Landcruiser and this 2500HD that I just picked up for a salesman in my fleet (I'm a Fleet Manager for a construction supply company that covers 5 states) have their rear bumpers lined up and if I were to drop my FZJ80 on top of this my front bumper would barely hit the dashboard of the Chevy.