[DmaxDually]

I replaced the factory tank in my 2012 3500HD DRW 5-6 years ago. I had the Transfer Flow 61gal midship tank installed and the 50gal aux tank installed in my bed with the Trax system. Have 111 gal capacity if needed. Transfer flow had done some mods and upgrades to their tanks and Trax systems since mine was installed. I'm very happy with it. The 50 gal aux tank fits under my BakFlip folding hard cover.