I am not commenting on if you should or should not do this.However I have cut a few frames in the past,but not of this year.If you do cut a frame,break the vertical line. Another words cut about half way up the side (vertical) then cut horizontal at least the width of the frame.I go more if I have room.Then cut vertical ,to finish the cut.This helps prevent cracking,and gives more welding surface.I also like to put a fish plate on the inside over the weld.The fish plate is rectangular in shape,but I cut the ends so it has a point at the centerline on both ends.so it looks like this
<__> .then I weld around it. Cutting the ends break the vertical line.Doing the joint this way makes it a strong weld joint as long as your welds are good.The last one I done was a 1988 chevy 4 x 4 that was being restored.I subbed the Back half of the frame,(behind the cab) with one from another truck.
