The car sounds nice and leaves the starting line well.

Sorry to hear about the Dana gear breakage. You are already changing, but for others here is my 2-cents:

Keep the backlash on the small end of the specs. Maybe a differential builder can make some suggestions.

1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1