This seal has been an ongoing issue, and the guy who rebuilt it was the one to initially replace it (the second seal, as the first started leaking a week after the rebuild). The tail shaft bushing, as in inside the tailshaft? If so, I am sure it was replaced during the rebuild (as pretty much everything else inside of the trans was replaced due to severe damage). With that said, I will look at that when I have her down for upgrades.
The driveshaft will find itself being replaced by a custom-fit, rebuilt and balanced Police Crown Vic 4" aluminum unit here soon (the same time I install the 4:10 Trac-Lock equipped center section).
Right now, I am making the containment case for the ASHAM 8 module, plus trying to find a convenient-yet-non-intrusive location to mount it. Being as I use the lighter as a power output for a phone charger, that is out of the question unless I relocate it.