If you look on the Kz family form you can find more information and ask questions regard the Durango Gold 5th wheels, nice people on the form with lots of infromation
http://kzfamilyforum.com/board/4/durango
We traded our 12 year old Coachmen 5th wheel this past January for a KZ G394RLT and could not be happier.
I have to tell you this 5th wheel pulls better than the old Coachmen we had an is 7ft longer...
There was a few small things wrong but I fixed them myself, I do have a problem with the furnace not working, called my dealer they said it would be at least 2 months to get me in. I called Kz Customer service, they told me to contact the MFG of the furnace which I did, a service center for the MFG is only 10 miles away and can get me in next week.
For the OP having problems
If your looking for service work during the summer get set to wait 2 or 3 months for an appointment because they are booked up. Even the RV repair places are book up weeks in advance, I live near a very good RV repair shop, they have a very large parking lot with at last 30 spaces and a RV park next to them with another 30 some spaces that they own. In the winter maybe 10 spaces are filled, in the spring (April) you can't find a place to park till October when again work slacks off...
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Again if the OP calls customer service at Kz they will work with him to get his trailer fixed someplace, shoot if he comes to the Kz Rally the 1st week in August he more than likely could get it fixed right at the factory :)
http://kzfamilyforum.com/board/13/rally-kz