How often should a Toyota 4Runner have the following items performed?

I have the owners manual w/ manufactuer recommendations, but approximately and reasonably how often, under average conditions would a 1999 Toyota 4Runner need:



1) Brake fluid flush

2) Transmission fluid flush

3) Transfer case service

4) Power steering fluid flushHow often should a Toyota 4Runner have the following items performed?we recommend that all of those items be flushed or replaced (transfer case, rear differential and front differential... if you have a 4x4. if just 2 wheel drive, rear differential only)

flush it or replace it every 30K miles or 2 years. this is what we as techs do to our own cars and is what we recommend to our customers. i'm sure you won't find this information in any owners manual.