I have a 1988 w100 and a rattling/clunking noise comes from the left front wheel area as the truck goes over cracks or bumps in the road. Before I have someone look into it I would like to have an idea of what it might be.
Any ideas ?
I would check the brakes and calipers first. Does it still make the noise if you apply the brakes slightly?
If that quiets it down, I would pull the wheels and check the brakes. If they look good, then you might have a ball joint, tie rod or bushing shot.