[twindman]

I don't have a 3400, but the specs for almost all the new models list height at around 13' 6" I think. They made a big jump from a few years ago when they were 12' 3-6". My 2006 was 12'5" and my 2012 Mountaineer is 13'5".

I stick to US highways when possible (or state highways - stay off local roads). Interstates must be 13'6" I believe. Most state roads also. I haven't left any roof parts on the road so far!!!!