The original bendy buses ("box bendies", TIB 85x, TIB 86x) of
service 856 went to Kranji Depot. Some of them were seen on service
184. The changes was done during the launch of service 966 as well
as the moving of service 184 to Kranji Depot.
The newer Bendy Buses (TIB 1165 J - TIB 1169 Z) were former service
184 buses. They were placed on service 856 to replace the "box"
bendies that went to service 184.
The former Volgren Bendies of service 184 are now run-around buses
for Woodlands Depot.
To look for the former service 856 bendies, you can try CCK or Bt
Panjang. TIB 1109 Y of service 856 has also gone "missing".