Quote Originally Posted by FordMan77 View Post
125K with unknown maint. history, I'd do the LIM gaskets/coolant elbows, change the plugs/wires and change the oil in the S/C. Then I'd do a trans. pan drop/filter change/transgo kit/refill as well to keep the built of glass trans happy for as long as possible.
Seriously this is the best advice in this thread. Start here.