Next up is to weld together the inside of the stock frame to the new 2x4.
I trimmed the 1/2" lip off the bottom of the stock frame that stuck out past the 2x4 just to make a cleaner look when it was welded up.
More welding of the two pieces together
Ok so once the whole bottom of the stock frame and the 2x4 have a nice solid weld(be careful not to get it to hot and warp it) you can start trimming the top of the stock frame off flush with the 2x4. Sawzall would prob be best at this point...I used the torches. I cut half of it ..then welded the top of the 2x4 to the old frame.
TAke notice how I angled the stock frame to blend in with the new frame. This elimates the drop off that would occur. I think the slope looks better and is stronger than just a sharp angle. The only problem is that it will require minor floor mods under the seats.
Now you can go ahead and trim the front sections. I went ahead and made a new top piece to blend the new frame and old ones out of 3/16" plate. I also welded in another piece of 3/16" plate along the side for additional support.
Once that is all welded up it should look like this:
