Is this a good setup for street/haulin' butt?

1970dartcustom said

742 is the carrier, positrac is the point!


at :42 seconds limited slip, at 2:00 posi...

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the point he's making is that no mopar came with "Posi-trac". Mopars came with "Sure-grips". It's highly frowned upon in mopar circles to refer to a sure grip unit in a Mopar axle as a "Posi" even though they are essentially the same.