Question: See picture below of a typical pinion shaft and notice its rolling on bearings, much like wheel bearings you may have seen, with an inner ring and outer race, so the pinion shaft does NOT rub the bores/shaft.
. So why the "...friction-reducing coating on both the pinion shaft and pinion gear bores." as they say?
It just can't be they are using Plain Bearings (non-roller). Doesn't seem right, yet does anybody know what this is?
Answering some of the posts above: No, its not just an inspection only. They must replace the differential.
I made an appointment yesterday, and its scheduled for November 2, a couple of weeks from now. The service adviser is going to order the parts ahead of time so the car doesn't sit around at the dealership waiting for the parts. (I've had parts ordered in advance before from another Ford dealership before the car goes in for service, and usually you can talk them into this.) They should be able to do this in a day.