JohnnyTC3- odds are 5-1 that if you pill apart the left front steering knuckle you have a detonated bearing, or busted cvd..... remmber you have to tear both apart!! But you will find something wrong!!
But first do a simple test... hold the car in the air and give it throttle, then release the throttle so that the wheels roll to a stop. take note of whic wheel stops first (probably left front....... remotely possible -- right rear) Next check for these things.......
1- Axle shim not on outside of axle before the roll pin.
2- bearing detonated (my bet)
3- CVD damaged
OHH yeah also check for---
4- bent hingepin (inner and outer)
5- busted plastic parts (arms,c-hub,steering knuclke, ect.....
6- Diff outdrive bearings
7- over tghtened wheel nut......
Some of this stuff may sound stubid and obvious, but don't be an "ohh it can't be that or I woulda noticed that).... check them!!!! When you car doesn't act right and there are 2 cause... and only 2!!!!!
1- faulty set-up (you seem to have eleminated that)
2- Mechanical failure.... there can't be anything else.......
BTW: I always start with mechanical failure because I don't end up finding a bsted bearing and having a car that is all out of whack..........
IF all else fails then maybe you got a ZOOLANDER
........ (can't turn left properly....LOL