are my wheels falling off!?

[phil-r]

stupid question but now i got your attention.
there is this clunk and knock noise comming from what i think is the wheels, it comes around when the car coasts but goes away when i accelerate or break. but if i break softly it gets a bit louder then goes away. WTF!?
sorry for the long story. thanks bud.

[trackpig]

at first i thought driveshaft but when mine was bust the noise/vib happened when accelerating and went off while coasting