Hi guys, my names John and I've been looking/searching for the right diesel for me for about a year now. I found a 2005 2500 CTD with the nv5600. I had to buy it, and I'm so happy I did. She has 88,000 miles, short bed, and 4x4. Huge shoutout to @RSchwarzli for helping me and teaching me the ways of the Cummins. If anyone wants to buy the bed topper for a reasonable price, I would rather sell it to someone who will use it rather than it sitting in my garage. Excited to join the Cummins family!