Originally Posted by AndyF
That is an interesting tip. I hadn't heard of the $60 Cummins setup. I'll have to look into that.
Make sure the output shaft splines have the same pressure angle as the planetary setup. They changed a few times over the years.

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