I'm not sure what the "senior tech" is talking about...the tremec TR6060 has far proven it's durability in the viper, the shelby cobra mustangs and all trim levels of corvettes. dear lord, it can hold up to a 600HP V10, i doubt 375-425 HP is exactly stressing this trans. Now the rear end in the challenger is another story...we won't know for a while how they hold up, even after the redesign. I know i'm doing my part to "durability test" every part of my drivetrain, including a 3000 rpm clutch-drop last night for the amusement of my white knuckled passenger!