the only reason the trans/diffs go bad is because people beat the living snot out of them. This car has a tendency to have wheel hop with hard launches which will absolutely kill your diff. I drive my car fairly hard, but i dont slam gears and powershift.
I wont argue with the spun bearing issue with the engines. Oil starvation can most certainly be a problem. One of the reasons why most people swap in a 3.0L longblock is because it has an extra another oil drain passage for the extra lubrication. (and of course the extra hp and tq is nice too.

)