My opinion is that an AF 811 belongs on a DRW.
I couldn't agree more for those that have carried big/heavy campers buttttt,there are those that will tell you on the internet there 811 on a 3/4 ton is as stable as a go cart...
And another point,it has been said here on the net many/many times the AF 811 overloads a modern dually as far as GVWR goes..
Heck,I have a not so new dually('94 F-350) and the AF 811 challenges my rear axle ratings and the 990, if you believe what is posted about there actual rear axle weights,takes it to max..I have seen some post the AF 990 weighs 82-8300 on the rear axle and others around 7800..Who to believe for a new guy?
I still wonder how everyone on an internet forum gets there axle weights to be exact or very close too, without some guidance from qualified people on weights and measure on a public scale and where to stop and go in getting there readings on said scale.I sure would not take any of them to heart within a few hundred pounds, which is crucial to some that are reading there post.