well... here comes the overweight speach from some. you will be over weight, i agree. but with the right precautions all would be fine. im not sure about the exhaust brake and older automatics, but if it is doable go for it. make sure you have a great break controller and tip top trailer/truck brakes. take your time and be cautious.
some air bags will be needed i would have to say as well.
i tow 18. 5k total weight with my 32 foot goose. well over weight, but with all thre axles on the trailer braking and the exhaust brake i have no issues. i am right on top of my tire's limits and will be making my short box a dually on 19. 5's in the future.
then my only concern is power. i have enough, but want more... who doesnt?
pictures of my setup are in the sig.
Grant