Yeah Dave
at the time I thought WTF when I seen the XU3 on the broadcast sheet, as I only knew of XU3 for the Sandman Van's and Ute's, I was told HQ and why HQ as it was the first Sandman the HQ (Jan 1974), but Dr. Terry says HJ. But as the forum is a great Rana learning place, XU3 is for the roof lining, interesting note XU3 getting used twice, then later on HSV used XU3 as a Yellow Colour for its VR/VS HSV Dore, so used 3 times
AL
Al
Dr Terry is correct. XU3 was neutral headling in HT-HQ. The Original Sandman vehicle package (XX7) was re-named XU3 in mid 1975 and the new Sandman package with passenger tyres got the XX7 code.