Commencing late 1998, a program to convert most of the remaining VOBX, VOCX and VOFX class open wagons to VOHX log wagons was undertaken. Initial conversion was removal of the 2 pairs of doors from each side and the fitting of winches. Later conversions involved removal of the remaining side section between the doors and the fitting of stanchions and winches. The existing wagon numbers were retained and a total of 90 conversions are known as follows:
3, 4, 6, 10, 17, 37, 69, 77, 78 82, 84, 86, 88, 89, 107, 108, 129, 131 141, 144, 147, 161, 217, 232, 234, 243, 249 259, 263, 274, 275, 293, 300, 358, 380, 384 395, 411, 413, 416, 431, 1002, 1007, 1013, 1018 1020, 1023, 1026, 1030, 1035, 1038, 1040, 1042, 1048 1053, 1054, 1061, 1066, 1068, 1083, 1086, 1087, 1089 1094, 1095, 1097, 1102, 1106, 1107, 1111, 1114, 1117 1118, 1120, 1124, 1132, 1135, 1137, 1141, 1142, 1144 1147, 1148, 1151, 1155, 1156, 1160 1161, 1162, 1166.
During 2001/2002, a program commenced converting at least 68 of the VOHX wagons to VQOF container wagons.
Known conversions are:
3, 17, 69, 77, 78, 82, 84, 89, 107 108, 129, 141, 144, 147, 161, 217, 232, 234 243, 259, 263, 274, 300, 358, 384, 395, 411 413, 416, 431, 1002, 1007, 1013, 1018, 1020, 1023 1026, 1030, 1038, 1042, 1061, 1066, 1068, 1083, 1086 1089, 1094, 1095, 1097, 1102, 1106, 1107, 1111, 1114 1117, 1120, 1124, 1135, 1137, 1142, 1147, 1148, 1151 1155, 1156, 1160 1161, 1166.The remaining VOHX wagons are currently (2005) stored at North Geelong and Tottenham Yards.