How much can a class A tow?

I am on my second 1999 coach both having Cummins 8.3 engines.First one ran 2000rpm at 70 mph.Present one is geared different an only runs estimated 1700-1800 rpm at 70mph .My presennt coach weighs 23940 lb with full fuel.It is rated to have a gcwr of 32410 lb.Along with contents an Chrysler van an dolly an perhaps 500lb in the van it has adqueate power .However the first coach pulling the same Chrysler was geared much better for power an it was easy to tell .This might help you decide considering the weight you would be pulling.