I started on the frame for Tom's Wagon since my Dart is off at the bodyshop. It is made from 3x4" 3/16 wall tubing. I am stretching the wheelbase to 112". I have a set of Rubicon Express 1.5" SOA springs and leaf spring hardware from Ruff Stuff. The front D-ring shackles are from Ballistic Fabrication and were the only one long enough to fit through the 3" thick crossmember. The crossmember is the front bumper, that way nothing will be directly in front of the front tires.