Mine seems to ride level (of course it's not loaded yet) and on the trip home it rode and handled great! As of now I don't think I'll need anything but if the suspension needs help I was thinking of these!Congratulations on your new rig.
We have the same truck for our 36FL. Don't know if you have air bags installed, if not, they are a great addition. With the SRW they help to bring the front of the coach up level and provide a much better ride.