Why does 2015 ford 2.7 out tow 2015 Ram 3.0 when Ram has higher torque numbers?

Why does 2015 ford 2.7 out tow 2015 Ram 3.0 when Ram has higher torque numbers?

Maybe the ring and pinion gear is lower(higher numerically)in the Ford than it is in the Dodge. This would allow more torque multiplication at lower rpms. The Dodge probably has more peak torque than the Ford but a lower rear gearset will make better use of what torque you have.