I have a 2004 dodge caravan when i drive on the highway at 100km/h or more the van shakes as if the tires are unbalanced. i have checked the tires and they are fine i changed all of the suspension and the problem is still there please help

Front wheel drive axles... CAREFUL!!!

Have you checked all your steering and suspension components ? Also check your tires, maybe you can rotate them and then take on another drive.

How old are the good tires? These speeds usually mean belt or balance problem with tires...If new tires, they need to be re-checked for balance...and not out of round...also check for bent wheel...due to chuckhole? Sometimes a bent steel wheel can be hammered straight...hope this helps.

unbalanced tires most likely, not a big deal

When it comes and goes at a certain speede, it has been my experence to chech an inner cv joint. See if you can safely duplicate this on a hoist.

100 miles an hour that's pretty fast a couple of things unbalanced wheels front end bushings ,tie rods rockin pinion and alignment

Could be shocks, steering rack, tires, or engine mounts. Take it to a mechanic.

HAVE THE TIRES BALANCED AND CHECKED FOR SEPARATION

I've had several of these vans with this problem, check the transaxle for low fluid. Each of mine would start shaking when the fluid was low.

does the van shake or vibrate? does the van have tires on it ?start by switching the left rear with the right rear test drive and listen for soun if no sound then the tire has a bad steel belt replace tire if the sound is still present. jack up van and spin tire if no sound is heard replace wheel bearing and if there is still a sound look into brake drum for possible springs or clips that may have fallen into drum causing noise but i would say its more than likely the rear wheel bearing to change that u must buy a new bearing and follow instructions on replacing good