Hello SD JunkMan, Welcome to the Journal. Here is a picture of the pivot at the front end of the sub frame. I bolted 1/2" X 4" plates to the outsides of the frame rails with 2" holes drilled through them. Then I took 4" X 4" X 1/4" angle and drilled the leg pointing down to give me a flat surface to build a base for the cab floor. I ran a 1 1/2" schedule 40 pipe through these and sleeved over them with a 2" pipe to keep the spacing right and add rigidity. Then I added tube steel outriggers with a plate to catch the original front cab mounts. From there I bridged between the angles in a couple places with 1" X 3" tube steel laid flat. I Welded these on both sides the whole 4" a crossed the angle to add some shear strength. The angles ran right above the frame rails and at the back of the cab I put some rubber pads for it to land and ride on. Then I continued the angles vertically at about 70 degrees up the 22" of the step to the back cab floor level and repeated what I did under the front cab. To support it I built a box frame that bolts to the frame rails and when the cab comes down it lands on it. I have rubber pads on this also and a 3/4" round pin that goes into holes in the floor of the back cab under the seat on each side. This keeps everything aligned and in place.
The doors are going well. Lots of sanding, plug welding filling old holes for mirrors and whatever, some body filler and more sanding. Then finally into the spray booth for priming.
Last edited by COCOE; 12/27/20231:21 AM. Reason: to add photos