What rotates only when the Jeep is moving? The driveshafts and axles. You can try driving the Jeep with only the front or rear driveshaft installed to narrow down where the ticking is coming from.
2000 TJ SE - Rusty's 3" susp w/OME shocks, Stock CAs&TBs, 4.88, F&R Truetracs, 33x10.5 BFG KM2, Bestop tire carrier, MM10500 hydro
2005 LJ Rubicon - RC 4" X-Series w/Bilstein 5100, Stock TBs, 4.10, 33x10.5 BFG AT, Bestop tire carrier, Warn M8000, 1350 series drive shaft, ZJ HD tie rod