Don't waste your time with the instructions from the manual for the rear axle bearings. Just pull the axles and take them to the machine shop, along with the new bearings and outer seals. The machine shop will press off the old ones and press on the new ones. The machine shop I use in Chattanooga, TN, charges $25 per axle
for this job, and it's well worth it.
The outer seals are sold separately from the bearings. I think the last set I bought came from Advance or AutoZone. The seals are very inexpensive (i.e. don't try to reuse them).
You could probably get away without replacing the inner seals, but they're pretty easy to replace -- so since you've got the axles out anyway, why not? :o)
You will DEFINITELY want to find the clip, or else you'll be doing this whole job again soon. I got one off of a parts car, but it may be possible to find it new.
For an example of one of my own adventures in axle bearings, check out
http://www.imperialclub.com/Repair/Axle/BearingFailure/