knocking noise from the back end of the F80.

[Nonopr01]

Knocking noise on the back of the car coming from the bottom. Can't seem to locate where is coming from. At low speed.
Anyone has experienced this that can help out?. I thought it was the rear shock tower but already check those and the built in bushing is good to me.
Anything come up?

[Nonopr01]

Solution: replace both rear shocks. Damage/blown with 36,000 miles.

[M3SQRD]

Have you checked the diff bushings? They’re a known part to fail and will lead to various clunking noises, etc. from the rear.

[Nonopr01]

The problem was the shocks. Not the bushings. But thanks for the comment.