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Piston rings don't have ~700 lbs of force pushing behind it against the walls like these block LSD do. Oil works to lube the pistons/wall while oil works AGAINST block LSD as block LSD need to have...

Or the design of this type of block LSD is inherently bad from the start. Think about it, every time both wheels are not spinning at the same speed, your are grinding metal against metal.
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I disagree. I would not run it on the street, at all.

This is not made by Phantom Grip.

Less than 5000 miles.

http://www.thelostartof.net/tryingbe/dodge/blocklsd/1.jpg
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