Leveling Question

I just got a 97 tacoma 4x4 and i obviously want to do the typical teenage BS by lifting it and stuff, i measured from the middle of the fenderwell the ground all the way around and the truck sits at 3 feet all the way around. completely level, i dont see any leveling kit or billies, how could it be level? maybe the rear is sagging down making it level? but i want to do a 3" leveling kit and 3" blocks and put 285/70r17's on it. and i'm just trying to figure it out.

 

There must be a spacer on the front? My 2000 4x4 with front billies set at 1st notch and newer stock leafs measures the same. With 31 inch tires. 3 feet all around. I would use a ebach/toytec lift spring lift in the front and aal in the rear.