sounds like you won't get a definitive answer on what a 1976 Kingswood XX7 sandman had on the tailgate. and with probably only 10 left, and the tailgate a common damaged thing may be best to

ring Andrew, 0417964070, he has a mint Julip 4/76 Dandy Sandman Kingswood ute the same as yours except L32 M20, and has owned it for 20 years. see what he can remember....

wasn't the yellow HJ ute in the sales brochures with the motorbike on the back a kingswood?, it had the kingswood pillar chrome strip anyway from memory......