Ok, well it all turned out fine. The thrust washer over the bearing was about the exact same size as the ID of the seal so it came out fine and I could see the whole bearing and cleaned it out easily. So no need to remove the seal, just gotta do the other side tomorrow. Guess someone else will have to find out if Napa lists the right seal.

The only pain was I was also replacing the lower ball joints and the ones I got from Spicer came with the wrong length and type of bolts, the bolts were shorter and they were not flange bolts. So the bolts only went like half way through the nuts so I had to use the old bolts.