3rd Gen Hemi - gearbox conversions?

There Are 2 Tremec T-56,, One Being The One Used In Last Generation Camaro And Firebird,, And The T-56 Viper Spec,,they Are 2 Different Boxes,,the Viper Spen Box Has The Viper Logo On It ,and Is Rated At A Higher Torque Level,,
T-56 Viper Spec In Viper And Corvette And Cadilac Road Racing Cars