Something is broken, loose or worn out
Could be the front wishbone. Mine was making similar noise, especially over bumps. Not a major repair - approx €250 euro
chiken
If you operate a front wheel drive vehicle, the clunking noise you hear may be a CV joint bearing going bad.
You need struts
Bad shocks
probably your rearend
tie rod
that is either your front right wheel bearing or your coil spring is turning need new suspension..$$$$
A car that is in good running condition should not make a clunking noise. If a person pushes the gas and brake pedal at the same time causing a car to make a clunking noise, that is an indication of stain on the motor.
A clunking noise, when you put your car into gear, is most likely caused by a bad u-joint. A problem in the transmission can also cause the noise.
If there is a clunking noise on a 1991 Firebird Formula 5.0 when going below 30 mph, and the clunking noise does not happen when the clutch is depressed, it is probably a problem with the flywheel. The flywheel moves freely when the clutch is depressed. When the clutch is not depressed, it could be that something is rubbing on the flywheel, like the clutch plate.
Wheel bearings or u joints