I GOT IT!! Now that I know what I'm doing, I could call it a cake walk next time. The only way I was able to get the shaft back in was to put the clip back inside the differential and slide the output shaft back through it. I had been trying to slide (drive) the shaft back in with the clip on the shaft with no success. Once I committed to puting the clip back in the differential, poped it right back in!! Thanks for all the input and support.
John