Clunk sound when turning and backing up

My 2005 Civic has a clunking sound when I turn the steering wheel and back off the driveway, slightly down hill. Steers nicely when driving and don't hear any clunks when turning corners or over bumps.
I've had the LHS bearings on top of the strut replaced and the sway bar? ends replaced. That reduced the sound, but didn't totally stop it. Could it be the strut?
Anyone else have similar problems and what was the answer.