I have a 2000 Eddie Bauer expedition with the 4 corner air bag suspension, but seeing how all the bags have small leaks in them, i will soon be replacing tem with stock coil springs so that i can run the Fabtech lift. I have a few questions about this lift though. I have a A4WD model expedition, and i have herd that when lifted there will be serious drive line vibrations unless a new drive shaft is made. Does anyone know where a longer drive shaft could be purchased? Also, how are the stock Fabtech performance shocks? Could i replace them with the dirt logic 2.25 shocks? I'm sorry that i made this post because i'm sure that these questions have been asked before, but i'am new here and i'am just getting into modifying my expedition. I currently just installed JBA headers and a custom "true dual" exhaust system with twin flow master 40 series muflers. It sounds bit**in.