I started out the day realizing that mother nature wouldn't allow me to work today so I figured that I would spend some time making a rear cross member.
After looking at it for awhile, I realized it was not going to be easy to do. There are problems with this that I just dont have enough knowledge to figure out easy enough.
The frame rails are different sizes in the back. They have different bends, and are different widths, heights. There is also the stock plate riveted on that holds both the spare tire winch, and the big box modules above it. There is the fuel rail lines, the exhaust hangers, and the leaf bushings. ALL of this is in the way of getting a solid cross member to fit inside the rails. I mocked a cross member out of a pc of oak wood, and for the life of me, I couldn't get it into place. I see no way of fitting it in w/o removing everything in its way. I am definitely not going to do that. So I need an alternative.
So....I'm kinda stuck here. These are the options floating through my head.
1) Cut the frames bottom lip to allow a 1x3 to slide up into place.
Worry...cutting the lip will weaken the frame and create an area that can fold.
2) Make a cross member out of flat bar steel aprox 1/4" thick x 3" wide and weld plates on the ends to bolt to the outside of the frame rails much like a hitch would be installed.
The only place I can do this would be just behind the shackle bushings.
Worry...Will this be strong enough and do any good at all since the force is on the outside of the frame walls, not the inside?
3) Make a 2 pc cross member. 1pc 1.5" sq tube, 1pc 1" sq tube, both have welded plates on the ends, slide one inside the other, bolt them to the inside frame walls, drill 2 sets of holes right threw them, add 2 bolts to hold them together in the middle.
Worry...That this will be too small and/or weak to do any real good when the frame starts twisting off road.
All I am really after is some kind of support to the rear frame to stop it from getting any more tweaked than it is. And NO, I haven't had a chance to take it in yet to straighten the frame.
Oh..and 4) Say screw it all, and just run w/o a rear crosmember?
