The FDM class meat vans were otherwise standard FDs fitted internally with meat hooks and externally identified by a white stripe around the centre of the body. All were eventually reconverted to class FD. Conversion and re-conversion of the class was as follows:

1954	13498, 13860 from FD
1955	13413, 13469, 13533, 13539, 13627, 13631, 13651, 13655, 13746, 13766, 13845, 13873, 13901,13907, 14036, 14118, 14130, 14324 from FD
1970	13413, 13469, 13533, 13539, 13627, 13631, 13651, 13655, 13746, 13845, 13860, 13873, 13901, 13907, 14118, 14130, 14324, to FD
1971	13766, 14036 to FD
1972	13498 to FD

The WAGR outline diagram is shown below.