Sounds like a a ball peen hammer is flopping around under there. Mostly over small bumps. Seems to be worse when it's cold. Tends to go away when the van warms up.
Shock doesn't wiggle
Sway bar (upgraded) seems tight
Sounds like a a ball peen hammer is flopping around under there. Mostly over small bumps. Seems to be worse when it's cold. Tends to go away when the van warms up.
Not sure if same as my t1n, but I had the same problem and neither I or my mechanic could tell where it was rattling. Then a friend of mine looked under and noticed a rubber spacer pad missing from between two of the rear leaf springs on one side. New ones were like $5 and fixed the noise 100%
I thought I had found it when I was banging around under there - the spare tire carrier was a tad loose, so I snugged that up, but still the same noise.
Double check that spare tire carrier. Mine was tight, but one of the "hooks" that hang down thru the body sheet metal could still cause some banging. I think I ended up swapping the left and right sides and carefully positioning them from below while tightening above. Good luck.