I Have Vibes

I just put a 21/2" lift in my 96 and I am getting vibration under my center console, it just seems to be when I am on the gas, but was not able to get it above 30, to see if it gets worse. I am using 2" springs up front, and a 2" leaf out back. Can I fix this with a xfer case drop, or should I shim? I was hoping that the lift would settle, and it would self fix, but probably not, right?

Yeah, try a t-case drop. If that doesn't do it you may have to invest in an SYE.