I put my dog box on my receiver hitch. I built a platform that goes into the receiver hitch like you see in cabelas then just atached my box to it. The only problem is a jeep receiver is not built to take the weight of a dog box. The receiver flexes to much they are not rigid like a pickup reciever. The fuel tank on my cj5 doesn't alow for them to be bolted to the frame. It works good but I had to build some brackets to hook it to the bumper so it wouldn't sag so much.