Updates!
Replaced the cupped BFGs with Continental Extremecontact DWS 06 in 295 40 R21.
After many miles of low grinding/whining from my rear end and lots bof back and forth with Ford, I sourced a low milage (15k) salvage center section and had a great local shop perform the swap. Before the replacement, i changed the gear oil and found lots of sparkly sludge at the drain and fill plugs. Kept the OEM bushings and retained the JXB rear bushing insets with 12.9 bolts all the way around.
They also installed a full stainless 2.5" cat-back with X-pipe, Valvetronic mufflers and an updated Steeda diff brace.
Jailbroke the stock 10' display and finally have full screen Android Auto interface.
Finally I loaded
@GooseTuned most recent 93 tune with transbrake.
A lot done in the last 3 months!