My '94 Caravan ES made a noise like you described at 140k miles,
sounded exactly like it needed to have the original struts and strut
mounts replaced, since it was overdue, which I did, and it didn't change
Ended up replacing the front stabilizer bar bushings, which are prone
to going bad and causing that noise (at least on a '94, anyway.
Those bushings turned into a nightmare to change because the bolts
holding the brackets in place all wanted to snap off, which some did,
others did while putting them back in. Got it all back together but not
without getting a little creative with the welder.