AAM 9.25 Front - 4663 ft-lb MOT (no COT given) AAM/GM 10.5 FF Rear - 6242 ft-lb MOT (no COT given)
AAM/GM 11.5 FF Rear - 8321 ft-lb MOT (no COT given)
Dana 60 Front - 5550 ft-lb MOT (1500 COT) Dana 70 HD Rear - 8800 ft-lb MOT (2000 COT)
Dana 80 Rear - 10000 ft-lb MOT (2500 COT)
Ford 10.25 FF Rear - 8300 MOT (2000 COT)
Ford 10.5 FF Rear - 10660 MOT (2900 COT)
Looks like the Dana 70 is rated for quite a bit more.
-4x4 mag
another point to look at is the aftermarket support of said axles...the 11.5 AAM is not well supported yet for ratios and posi/locker selections were as the danas' are