Help deciding. New travle trailer.

Rear axle weight rating, how much of the overall weight can be put on the rear axle. A good weight distribution hitch can help transfer some of the weight from the rear to the front, but there are limits. Basically you might find that you need to put the lightest people in the back and put essentially zero cargo on or behind the rear axle other than the trailer and weight distribution hitch to keep that number down. Once you get the vehicle load everyone and a full tank of gas and hit the nearest CAT scale and figure out how much your loaded vehicle weighs and how much is on each axle, that will tell you how much you can add and how much of it can be on the rear axle.