Dual Generator
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
The dual generator package consists of an upper/lower generator system (diesel only). The 6.0L upper generator is a 140-amp generator with a 2.79:1 pulley ratio. The 6.0L lower generator is a 120-amp generator with a 3.00:1 pulley ratio. The upper and lower generators are not interchangeable.