ok i saw this done to a jeep adn thought it would probably work on my 4ruuner. 3/4 elliptical front and rear? anyone got some info on this. i also thought about 1/4 elliptical in the rear. (i know, major modification ) anyone tried this or know someone that has? any pics? i need more flex!

 

You might try going with 63" chevy springs instead. They will give you a lot of articulation if set up right.
I know a guy that had 1/4 eliptical springs on the rear of his truck but didnt like them. He eventually went with full length springs.

 

Ditto what seaflea said, plus there is no way to make 1/4 ellipt or anything like it safe for the highway. REally.