727 or 904?

The difference between a 904 and a 727 is obvious to anybody who has rebuilt both. A 904 clutch will drop thru a 727 clutch. Most guys don't have money to throw away for a tenth of a second and 2mph on a daily driver. If you can find a driveshaft or have one cut reasonably then always choose a 727 over a weak flimsy 904. I build 904's for guys running strokers on the street, but it's not worth it. They have plenty of money but they want it to all bolt together simply. When I talk about driveshafts and cross members, they get a blank look on their face. Too complicated, they say.