front end bottoming out

[capoeta]

1994 grand caravan.

front end keeps bottoming out, even on small bumps on road... violent on medium potholes and speed bumps. It's like the struts were not even there.

i replaced the front springs to Heavy duty, replaced the ball joints, swaybar bushings, replaced the fronts struts twice (Gabriel and monroe). I also replaced the spring seat bushing (round bushing where spring seats on strut).

Probably unrelated to problem but also changed: replace both front axle shafts, replace both bearings hubs.


I also replaced the rear leaf front and back bushings and rear shocks.

Could it be that I did not tighten the lower control arms enough and they are too loose?

Could I have gotten deffective struts twice? I checked for spring/resistance in the compression of the strut before installation and it seemed ok.

Any ideas would be welcomed.