While trying to diagnose a rear end noise, I removed the spider gears.
I found the problem was a parking brake issue, so now I'm trying to get the spider gears back in.
It seems that the axle gear portions are pushed inward too far in the carrier. I can't seem to get the spider gears to go back in far enough to clear the carrier so that they can rotate back into place. The axle shaft definitely need to move outward as the spider gear pin won't even fit between the end of the shafts.
Help please!

 

Okay, figured this out on my own.
The spring washers on the limited slip push the gears toward the middle of the carrier when the spiders are removed. Have to take it to the Ford dealership where they have a special tool to reinstall the spider gears.
Lesson learned, don't remove the spider gears unless absolutely necessary.

 

Its actually easy if you have a large pry bar and a extra set of hands.