still getting vibration WTF

[sweatnblood]

Ok so does anybody know of a good susp. shop here in san diego...I have a 73 camaro running a lt/ 6speed...so far I have replaced the U-joints...balanced and rebalanced the wheels...checked the drive shaft...they were checking the angle of the tranz/ shaft/ rear...and beat on tunnel enough to get the so-called proper angle but I still have a feak'n vibration after 70+ it's not coming apart but the rearview is buzzing and I'm just wanting someone that can drive this thing and pin point...thanks for any help