Yes these trucks do not have an exhaust brake. But it is not really needed, more of a luxury. What you do get is tow/haul a computer controlled grade shifting which works well. This goes all the way back to the first torque shift ford trans and has been tried and true. It will down shift and raise RPM's to maintain speed descending hills. Of course steeper the grade the more braking you will need to use to offset it.
I've towed the camper through the mountains out west and through the hills of KY & TN. And never once had an issue.
