Dana's are great rear ends, but if there was any ET to be found with a Dana you can bet the heads up guys would be running them. Strength of the 9" is not a issue regardless of it's design flaws, apparently gear life is not a issue.
Let's get back to the original question get the data and don't look back you're not heads up racing you're not pro stock racing you're not doing the crazy **** all these people are doing get the data and don't look back