What is the most travel you can get out of the front end? Rear? I would start full lose, max travel on both ends, with a video looking at the rear from an angle, hopefully including the front tires as well. It looks like the rear hit, stuck for an instant, then spun, so it might be too aggressive at this point, with the front too stiff as well.
Any idea of how much stall the converter has , and where is your torque peak?.