I have a 1992 V6 ext cab. I took the springs off and took them down to the local spring shop (look in the phone book, every town has one). They re-arched the springs and added a leaf to bring the springs back to the factory arch. Brought the back of my truck up 2".
I also put a set of Rancho RS5000 shocks on the back.
Air shocks are a good solution but you will loose articulation and increase axle hop.


2000 Ext Cab SR5 4WD 2.7L 5-speed.