cluncking noise after install

[87_GT]

over the past week i have installed 4.10s, SSM lift bars, lowering springs, and new calipers and rotors. when i drive my car and i give it some gas i get this clunking sound that sounds like it is coming from where my tranny and driveshaft meet. i notice it most when i shift since i get off of the gas and then back on it. it does it every time. i noticed that i had to pull my driveshaft out of the tranny a little bit so that i could bolt it to the rear end. if any one could give me any input on your thoughts about the noise, i would greatly appreciate it.
thanks,
Steve

 

[divit250r]

Did you weld the drop plates to the shock mounts, or at least bolt them? If not, the plates may be rotating, causing things to move a little and be all out of whack. One other thing, if you have the same lift bars as I do, the solid bushings transmit every noise and bump from the axle straight to the chassis. I notice some noises now that I didn't with the soft stock rubber bushings. Just a thought.

Scott