You didn't say whether the girls were 6 or16 but either way three dogs and two kids on the back seat would have created its own issues. Unless your truck bed is full of other items, mdstudey gave probably the best solution. But, it has its own issues. Our old dog would want to come up front through the dual sliders. Was not a crew cab. If we closed it then the heat and a/c didn't flow to the back. If you use the tt again consider putting them up front in the trailer instead of the back in the bunks. There is much less motion forward of the axles. By the way your fridge runs on gas while you are driving. Was it on properly? If you had already changed over to 110v before going in you likely couldn't tell. Thank you for sharing as we want to get a dog but have held off due to the various issues they present.
Paul n Mary
Our "Excellent Adventure" continues.
2016 Rockwood A 192 HW
2011 Silverado 1500 w/ Air Lift bags