We just got a new dog today from the pound. She's a 47 lb Beagle/Akita mix (mostly beagle). We are wanting to take her with us when we go places, and when we go inside somewhere (for example, to the local zoo this evening) we want to let her be out in the bed of our pickup truck. We bought a "truck tie down" assembly from the pet store today, but it didn't reach far enough across the width of the bed. We have a Nissan Titan. She was able to step her front paws up on the sides of the bed and could have jumped out. When we came back from our jaunt through the zoo, someone had removed her tie down from the interior of the bed and relocated it to the base of the outside of the truck and the dog was on the ground. We want to avoid this. Any suggestions? We have found a lot of nylon style tethers and harnesses, but this ones a chewer, and could make short work of something like that.