It's a Toyota tundra and it seems the faster I go the smoother it is over the bumps.
They both seem to take place : have a look at this and the references fz-juelich.de/ikp/detektorlab then try www-ssrl.slac.stanford.edu/~txrf/ best of luck
Go for a lower it 6 inches and put a blanket on the bottom of you car so if it hits, your good!