Inside Australia’s First Super Duty 300mm Extension | Full Build Breakdown

This is the first Super Duty 300mm build in Australia, and in this video we take you behind the scenes of what it actually takes to make it happen. Every stage is carefully designed and executed to ensure strength, compliance, and real-world performance. If you’re considering a Super Duty build or want to understand what really goes into a chassis extension, this is everything you need to know. 👉 Got questions? Drop them in the comments. 👉 Follow along to see more builds like this. Welcome to DMW We build tough rigs for work and play—chassis extensions, GVM upgrades, full conversions, premium trays, canopies, and suspension setups. All designed and built right here in Australia. This channel follows Reuben and the Dolphin family—Hannah, Aidan, and the rest of the crew—as they tackle big touring trips, showcase epic builds, review 4wd vehicles, and put our DMW gear to the test in the real world. No fluff, no fake ads—just proper 4x4 content from people who live and breathe it. 👉 Check out our website for merch, upgrades, and more: www.dmw.com.au 🔔 Subscribe to keep up with the latest builds and adventures. ---------------------------------------------------------- * Facebook - https://www.facebook.com/dmw4x4 * Instagram - https://www.instagram.com/dmw4x4