This is a new Raybestos 10R80 powerpack that is a drop in replacement for "E" clutches. 

The Raybestos® Powertrain 10R80 E Clutch Torqkit is a performance upgrade beyond the OE design that features an increased clutch count with 6 revolutionary performance GPZ frictions, 7 Steels with full 15 tooth count, and .101 selective steel to increase performance, durability, and towing capacity in Ford high-horsepower vehicles highlighted by the Mustang, F-150, Bronco, and Ranger.

Recommended Use:

High-stress driving, towing, or performance racing Mustang, F-150, Bronco, and Ranger 10R80 applications with increased horsepower and torque.