Agree,

Steering issues would be felt in turns to the right or left. Ball Joints and tie rod ends are both very common problems (and not hard to change out at all) with 240's. Both will cause you have have a shimmy in the wheel during turns.

Wheel Bearing failures are supposed to be rare and would be felt in the steering an handling as a vibration all the time. Along with making a bunch of noise. Since you feel it in the steering during brake, that would seem to point back to caliper or rotor.

Be sure and grease up those wheel bearings if you did not already do it.

Good Luck,

Paul