2016 K-Z Durango Gold 370RLT, The Durango Gold is the pinnacle of over 42 years of innovation and engineering excellence. This luxury fifth wheel has been equipped with standard features that other companies only offer as an option, if offered at all. Additionally, the Gold is backed by K-Zâ¿¿s 24 month warranty! The Durango Gold ranges in length from 39' 6" to 40' 6".