Do these worn LCA / UCA bushings cause the car to ride like crap and creat annoying squeeking metal sound?
I am at 98k and my car rides horrible even with new struts and shocks.

 

Im sure you drove that supra pretty hard..lol 2 degrees of negative on the rear wont kill your tires as long as your Toe is zeroed put...

 

Did you install the shims that came with the front arms? It bolts up to the wheel hubs. I didn't use those at first, after install I was able to get my front from -0.8 to -0.1 camber. Also, verify you assembled the front caster/camber adjustment cam correctly.

Rear, I didn't even use the toe bolts and got the rear from -2.1 to -1.7. Recently had the rear tires flipped to help with camber wear since I mostly drive highway.

This is with a 20x9 front / 20x10.5 rear wheel setup.