I had to look through some of your other posts to see what MH you have. Your profile says you have an MB, but it looks like you now have a 2014 E450.
The tires at 80 psi are rated at 9,880#, so that's a few hundred pounds more than the 9,600# rated rear axle.
Are you sure about that weight ? I have a 2014 32 1/2' Class C Itasca that had a rear axle weight of 7,820# fully loaded when it was 6 months old. I weighed it 5 years later and it was more fully loaded :B and weighed 8,600#, but still well under the axle and tire ratings.