'15 Ford F450 vs RAM 3500 HD Extreme Towing Review

They are using Ford 6R140 transmission from the F250 all the way to the F750. According to Ford, this transmission has been validated at 50,000 lbs for 500,000 miles. The PTO is rated for 50 HP continuous use and 250 lb ft maximum torque.

It's nice to see everyone stepping up. I wish there was GM product in the larger classes to keep everyone innovating.