[trularin]

Don't take this wrong, but these cars are not Cadilacs.

You will need to up the spring rate if you have them loaded and it is not enough. What amount of threads are showing under the lock nut?

If you do not have at least 1/4", you will be bouncing all over. Set it at 1/2" and see what you get.

How are you testing this????? I mean, I have snow on the ground and you do not live that far away.