Motorhome help

I would be more concerned with the transmission. I have a 1999 Gulf Stream model, 35' with the Triton v10. I am on my 3rd transmission with only 45K miles on the coach. All I have ever towed is a Ford f-150 behind or an Olds Silhouette. Last time transmission was replaced the commercial Ford dealer in NC said the transmission used in my Ford chassis was the same as used in the Ford Expedition. Way undersized for the RV application. You also have to take into consideration the weight of fuel, water, and any gear you carry in the RV itself. Now I am so paranoid I don't even tow a vehicle behind. I would check what transmission is in that chassis, as it could very well be the junk I have in mine!