dart sport build

How about this, you probably didn't even know they existed. I have a "A" body 7 1/4 rear with a 5.13 sure grip. Also have parts to assemble a 4.56 SG 7 1/4. Direct Connection had these parts available in the "old days", for stock eliminator, when you had to have the "correct" rear in the car. Gears available were 3.91 (could be ordered with the car), 4.10, 4.56, 4.88, 5.13 (these only DC parts).