+1There is no way your aluminum driveshaft should have been able to break the torque arm. I’ve spit driveshafts out of 2 cars at speed and had the arm get beat up cosmetically, but no other problems. How is the pinion any play?Also I have a spare steel D.S. if you need/want one.
Looked at your pics again, looks like the mount for the T arm to axle failed. Then the pinion angle got all fucked up and destroyed the shaft and front mount for the arm. Just my .02 though