Where ever you decide to cut the frame be sure and cut it at a 45 degree angle. cut the section to be welded together at a 45 degree angle, grind the ends of the 2 sections to a V, put them together and then full weld the 2 pieces back together (inside and out). after cleaning the welds and grinding , then add a section of plate on the inside of the frame with the ends being shaped like a V. Full Weld on the inside of the frame taper the edges of the strap for better width weld.
The first question every one asks is why on a 45 degree angle ? The answer is the stress never gets a straight shot at the weld, the stress is spread out so the weld does not fail. Remember when you heat the frame you weaken it, This technique insures that the rejoined section of the frame is stronger than it was before it was modified. Kieth
