Several folks have claimed that a stronger frame under an Airstream body will create all sorts of issues. I'm not saying that it won't but I am saying that so many other manufacturers did it successfully with no obvious issues. Avion and Silver Streak are examples. I have asked the experts (on this forum) on what Avion (and the others) did that Airstream can't seem to do that made them last much longer. So far I haven't seen anyone explain why it won't work on an Airstream. I also would like to know why some Airstream trailers have frames that break in just a few years and why a heavier frame would be detrimental to the trailer. If I had a new condition Airstream body, I wouldn't hesitate for a minute to build a new, heavier frame for it. It would take me a couple of weeks to have it ready to put a floor on and then the body. After seeing the Airstream frames, it would be easier for me to start with an entirely new frame and not even try to "beef" up the Airstream frame. I figure that a 22' trailer would weigh about 400# more and that would include the heavier frame, heavier axles and heavier tires and wheels. It would also have a GVW about 1,500# more than the original. Therefore, it could hold approx. 1,000# more in capacity.
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