Features:

*High-strength steel
*50% thicker than OE
*Stronger & more economical replacement for OE
*Manufactured by metal spinning process for a more durable product than other manufacturing *methods
*No applied coatings to prevent potential hydrogen embrittlement that may occur with zinc or *oxide coatings
*Eliminates undesirable direct thrust force to the crankshaft and thrust bearings

Why doesn't this flexplate have a ring gear?

Some flexplates have a ring gear for the starter drive. In the case of the Allison 1000 transmission, the ring gear is located on the solid flywheel and the flexplate will be installed between the flywheel and torque converter.