I have 2019 2500HD Duramax. They really do pull. Loveland, Vail, Monarch passes are no trouble with total load of about 17,000 #. I really like the manual mode of the 6 speed Allison. Wish I would have waited few years to get the 10 speed, but my 98 Dodge diesel blew the engine at 156K


If God wanted you to walk and carry things on your back, He would not have invented stirrups and pack saddles