Lmills,
I copied this from the DTT site, they have been selling them since the February time frame:
Diesel Transmission Technology ( DTT ) in conjunction with Reactor Products is pleased to announce the release of the new Billet Aluminium 29. 1 SFI certified Flex Plate with removable ring gear.
The custom DTT/REACTOR 5. 9 Cummins Flex Plate was originally designed for extreme HP application trucks, but first Generation Dodge owners & Billet Cover Converter customers will also be able address their flex plate breakage issues.
Lenco, Bruno, & Pro Street customers consulted all concurred along with Lawrence from DD & Bill from DTT that Reactors 20 years of flex plate experience & expertise made them the obvious choice to work with in the creation of the Custom SFI approved flex plate for the Cummins Diesel.
With the DTT/Reactor 29. 1 SFI certified flex plate you are ensured all the safety standards have been adhered to and each flex plate bears the 29. 1 SFI certification tag with its own serial #.
Precision CNC machined from solid Billet Aluminium the DTT/ REACTOR flex plate provides MINIMUM rotating mass while still offering MAXIMUM
strength.
The DTT/ REACTOR flex plate provides superior overall performance as the aluminium absorbs a majority of the engine harmonics, creating a smoother ride resulting in reduced engine bearing wear.