leaking rear seal. 2002 3RZ, 5 sp, standard cab 4WD

I just got back from overseas and laid eyes on my "new" Taco this morning. My dad bought it while I was away. Long story for short, it's a beauty with a leak. The right rear wheel bearing seal is leaking. Not badly, but there's definitely a leak! I was wondering if anyone has done a rear bearing/seal RnR and could they comment on how much of a job it's going to be. Thanks, Pete

 

It all comes down to what rear you have, ABS or non ABS. All TRD e-locker rears have ABS provisions even if the truck does not have an ABS system.
There is a bunch of issues associated with properly doing a seal/bearing and a ton more if it's an ABS rear.

Here are a few threads mostly about the ABS type. Non ABS seals just pry out and tap in flush with the tube but all the bearing stuff still applies.
Here are a few links, the issues are spread out a bit so read all of the posts.
http://www.tacomaworld.com/forum/1st-gen-tacomas/274582-proper-way-press-new-rear-wheel-bearing.html
http://www.tacomaworld.com/forum/1st-gen-tacomas/277005-stubborn-inner-axle-seal.html

Here's one more with some other improvised seal drivers.