Front left wheel loose...

2001 CLK 430...

The front left wheel is slightly loose - has a tiny bit of play when up on a lift.

I thought I needed an alignment until it was on the lift and I found the wheel had some play in it.

Is this a simple bearing swap out, or is it the hub, or knuckle?

I'm pretty much planning on doing it myselft, unless I hear that it's too much of a hassle for a back yard mechanic.

Any thoughts / advice on this?

BTW, I'm running stock 17" AMG chromies with RENNTech suspension.

Before I had the wheels pulled & tires replaced, I had absolutely NO shaking, though the car did pull to the left quite a bit.
I had uneven wear on the front wheels, particularly the left one, with the outside heavily worn.

I took the car back and had the wheels rebalanced, and still moderate steering wheel shaking between 40 - 70 mph.

Thanks for any feedback on this!