First off let me say I coudn't be happier with my new 99 runner. I even get to take a 20 min shortcut through the woods everyday with it to avoid traffic!
I do have a couple questions that I know you all will be very helpful with.

1: Is my 4WD knob supposed to vibrate or is it somehow stuck between gears?

2: I want to do a 3 inch body lift myself. ( well with my friend who has done it to about 3 different fords). My question is who makes a COMPLETE kit, that won't leave me with parts to fabricate? Will I need to buy longer lines seperately? I need to do this all in one day, and be able to drive it to work the next day

I go only go offroad about once a month, and it is just deep sand. I plan on putting some of the black rims with the fake beadlock on it for looks, after the lift.

Once again I couldn't be happier with the runner. I drive a lot on the hwy and have already put over 1000 miles on it since friday. I have averaged 19 mpg! ( ect button on)

 

There's plenty of lift options out there that are pretty easy to do.
Check out Sonoransteel.com
As everyone else will say search is your friend
There's body lifts and suspension lifts you can do,
and if you didn't know your year runner sits higher than all other 3rd gens.
The 4WD knob should normally vibrate.

WELCOME

 

Check out 4Crawler for the body lift. Roger offers the best stuff, great guy, with totally complete kits. He is on the board here, too.

Welcome, and good luck.

3" is a lot of BL though, IMHO.