Don't forget about the unit bearings used on most truck axles now, including the Dana 50's and 60's under those "heavy duty" trucks pulling fivers around. Throwaway parts that tend to break and take other stuff with them. Has society gotten that bad that we'd rather throw stuff away than perform very basic maintanance practices? I know I feel better driving on a set of kingpin bearings I installed and have serviced or on a set of wheel bearings I KNOW are greased and in good shape.
Sorry for the rant, but it seems like just about anything newer than a 1990 is just built....cheap
Oh yeah...and I never did have that 10SI rebuilt because I found a 12SI later on that was still in good shape (it wasn't for a car project anyway).