Ball joints might be giving you the clunking sounds. BTW did you have it aligned after replacing all of those components. If so, the check the steering box for looseness, pitman arm and steering column linkage. The alignment, if done should have picked up any excessive wear in the control arm eccentric bushings. You can check the sway bar rubber, but they usually give you noise rather than directional instability. Tire balance could be an issue as well, even though they are new and presumably balanced. Wheel bearings could be checked for excessive end play. Rarely wear out.
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.