Before you do anything you really should weigh all axles on your coach and compare those weights to the axle weight limits on the data plate to the left of your dirver's seat.

Assuming you are not in excess of the axle weight limits try to calculate how much weight you will be adding to see if you are able to stay within limits. Some coaches when loaded with full fuel, full water and the owner's personal belongings are over the specified limits. Adding even more weight makes a bad situation worse than bad.