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FYI, while there are obvious weight differences, the Dana 60 is more "efficient" than an 8 3/4 rear. I've been told by several class racers that in most cases, there has been minimal, if any, change in ET. The Ford 9" is probably the least efficient of the popular rears and the Chevy 12 bolt is the best!

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Are you trying to start WW III? Saying a 9" is the least efficient! Oh the humanity! LOL

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It would be pointless to argue with the facts.

As far as strength, I'm well aware of my old buddy Quicktree's opinion on 9" vs Dana 60's. But despite the ease of gear changes in a 9", a Dana 60 will handle anything most people would ever need. Once the optimum gear ratio is known, the drop-out center benefit isn't that big of a deal. Besides, the expense of maxing out a 9" is astronomical.