In 1971 a total of forty-four redundant CXA class sheep wagons were used as the basis for HE class low-sided wagons. These were the last four-wheel low-sided wagons built for the W.A.G.R. The wagons involved in the conversion program were as follows: 94, 270, 395, 491, 707, 720, 721, 843, 872, 874, 1098, 1127, 1131, 1146, 1922, 2554, 3096, 6739, 7118, 7434, 10070, 10080, 10081, 11309, 11314, 11316, 11318, 11325, 11330, 12081, 12084, 12110, 12127, 12136, 40403, 40406, 40411, 40413, 40414, 40416

The number series includes wagons converted from ex M.R.W.A. vehicles in the 40XXX series and also 7434 which, at least in theory, was a wooden framed CXA. It is very likely that 7434 and another CXA had in fact swapped identities at some stage. The class was written off as follows:

1976	3096 written off
1977	2554, 12084, 40414 written off
1979	843, 12110 written off
1980	7118 converted to NS
1981	11330 converted to NS
1982	40406 converted to NS
1983	94, 270, 395, 491, 707, 720, 721, 872, 874, 1098, 1127, 1131, 1146, 1922, 6739, 7434, 10070, 10080, 10081, 11309, 11314, 11316, 11318, 11325, 12081, 12127, 12136, 40403, 40411, 40413, 40416 written off

The WAGR outline diagram is shown below.