I have a 2005 4Runner limited 4wd v6 and received the service reminder in the mail. It's asking for these things that I have not done, but question them. Can anyone let me know if they really need to be done at 30,000 and if not when would be the best time? I only use the 4wd once in a while and mostly stay on the street to/from work... (daily driver). Toyota wants about $200 to do all of these things below w/parts. I'm used to doing things myself, but if it requires special tools I'm out of luck right now.

1. Replace non-plat plugs (can this also be done at home w/the average tools) What plugs are best?

2. Repalce cabin air filter (can this also be done at home w/the average tools)

3. Re-torque propeller shaft bolts (can this also be done at home w/the average tools)

Thanks for any help. Is there a website with diagrams for #2 or 3?