I am just having a little fun with the numbers. I don't think anything has changed with the 3400 or any other model. Think that Keystone, as Steve suggest, has decided to be realistic with the numbers.My guess is that the marketing folks were trying to keep the weights more 3/4 ton friendly. The 3400 has also grown a couple of inches over the last couple of years in the specs but still not to the 39 feet plus inches it really is.Marketing does not want them to be to heavy or to long..Marketing..love those folks..