my husband and I are planning a longer trip with two children (and maybe 3 dogs) for summer 2013. After much discussion, my husband now wants to use our 2007 Grand Caravan (with the drop down seats) to tow a pop up camper or lightweight trailer. Will a transmission cooler help?--his idea. We are planning on heading west from Richmond, VA out as far as the Grand Canyon, and back a more southerly route. Naturally we will be driving through some mountainous terrain. Our van currently has 70939 miles on the odometer. Does this sound doable? what other things should we consider? thank you for your input.