We always hear the stories of " I use behind bla, bla, bla and never a problem." My dog is bigger, what ever... There are pros and cons to every application. True the 904 has less reciprocating weight, lighter bla,bla,bla...OK The 727 are in normal applications, bullet proof. Most applications. Lets try to talk about what Joe Mopar should expect in stock condition on his application. Yes you can have anything built to withstand anything, but not everybody uses them for racing. A race car is a race car, a street car is a street car. Not the same. A race car only has to do its thing for a very limited amount of time. A street car has to live for a much longer time in many different driving conditions. Not on a track. Either trans will live for a long time in 90% of the typical applications our members will encounter.
