Straightening parts of a frame can be a tricky task and often requires heating with a torch and thinking outside of the box. A little farm ingenuity can be seen here with a combination of heat, a floor jack, and a come-along hooked up to a pry bar. Use your imagination and the tools you have at hand to get the job done. The key here is to not fatigue the steel more than is needed. Work the area a little bit at a time, relaxing the pressure in between pulls. Do not try to move things too far in one shot.