My suspension feels sorta bindy, and it pops and creaks and makes all sorts of noises under deceleration, downshifting, upshifting, and take off. Could this be caused by the pinion angle? If so, would this symptom mean that it is negative, or positive??? Whats the deal! Its quite embarrasing, and disturbing. Makes me feel like somethings gonna pop out (although its all tight).

 

Try lubing the poly bushings on the LCAs and such. Lube the front TA mount and check the TA to axle bolts for tightness. It sounds like something is binding.
Just some things to try.