There really isn't a whole lot up there to make noise. Like SMiller said, if you added the shock extenders without the control arms the UCA's are going to be riding on the Frame Stops. They are the ones under the upper control arms. They are not the rubber bumpers that used to contact the lower control arms. If it isn't that making the noise it is in the shocks. You could lower it back down with the torsion bolts and make a quick run around the parking lot, if the noise is still there it is in the shocks. Could be as easy as one shock not being tightened correctly also letting it move around a bit.