how to install rear end spider gears on 1998 Ford Expedition

removed right rear axle to install new axle studs turned diff spider gears fell out need to know how to re install spider gears back into place

Asked by for the 1998 Ford Expedition
This is not easy. Once they come out, you have to roll them in and they have to be engaged as you do so. It is a tricky little exercise that takes practice and lots of patience. I used to do trans/rear end work for Ford and I know how it can be very, very frustrating. Good Luck!