steering wheel shake after 50 mph

Thanks for all the help and suggestions . Next week I'm going to take the z out to a a front end specialist shop and I will see what they can come up with besides money out of my wallet . I like the idea of balancing on the car . just to be sure of myself I will also tear down the front end and check my torque on the ball joints . What should the correct spec be for this setting . As well I will switch the wheels from front to rear to see if there is a difference .

Thank you everyone for your continued help .

Chris

I'm probably going to echo some comments but here's my take.

#1 verify all your parts are torqued

#2 verify no movement of inner tie rods

#3 inspect the wheel bearings

#4 verify wheel balance

#5 Might as well do the TC rod bushings (they are cheap and easy) or do like I did and get the ball/cup upgrade with a stock bushing in the rear position

http://www.thezstore.com/page/TZS/PROD/PSDC10/23-4190

#5 Have you inspected your steering rack bushings and coupler joint? This would cause more steering wander than anything else, and loose steering

#6 Alignment - this is a must have after any major suspension work

Hope this helps