I have a 85 4runner with a 3 inch block lift with 6inch long shackles in the back and i am wondering how to get some good flex out of the back without spending too much money i also just put on 12inch travel bilsteins

 

your leafs could already be worn out, see if there flat. look into the 63" chevy springs. its really popular and give your pretty good flex. theres some good threads about them on yotatech. hope this helps!

 

Ok cool thanks I've been thinking bout that

 

I second the Chevy 63" motion.

Whats your front lift look like?