ADDING A SURE GRIP

Umm... I'm reading "67 Dart 270, 225 slant six" under your avatar. I assume that's the car that the sure grip is headed for.

Does this car (the Dart) have an 8 3/4 rear already? Or is it the 7 1/4 rear I would expect to find under it?
Yep! That’s what this Newport donor 8 3/4 is for. The Newport is donating its 383 motor and 727 trans as well. Will have to get the axle housing shortened.
Got the Newport for $350 so can’t pass up the chance to build up the Dart!