You know whats fun? Next time your on the trail and everyones stopped, throw a long zip tie on to some ones drive shaft and dont cut it so it slaps the body/suspension. Watch em get all freaked out. Haha.
What if you jacked up each corner of the truck individually and spun the wheel by hand to try to hear it.
Or drive slowly in a parking lot with some one outside the truck listening to try and pin point it.
...and check for zip ties...
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92 ExtraCab on 38s: built for go, not for show
88 4runner: Solid axle, doubler, fun stuff
IG: rattlewagon
Its all about the parts you break, and the friends you make.