As far as I am aware the emblem is on all ute, van, Kingswood, Kingswood SL, BO6 tonner, Premier and GTS except Sandman. This is backed up (from Sandman perspective) by parts catalogue, HZ Sandman brochure, HZ features book and HZ POA documents.

So those that didn't get the emblem were: XU3, XX7, Deville, SL/E and Caprice.