The wiper jets are not a good indicator of the body being changed and the rear quarter lights were plated over on a lot of utes and vans back in the day, I have two HZ bodies with them plated over. The wiper jets are easy to change by drilling two holes in the cowl panel and removing two self tappers where the earlier style jets were attached. A much better way of telling the if the body is WB is the seat mounting holes in the cab. The HQ to HZ seat tracks are a different width to the WB style, bench seats will interchange but the buckets will not. Earlier style buckets will have the outside holes line up ok but the holes closest to the tunnel won't. WBs had the Commodore type seat not the Kingswood type. The GVW is the dealbreaker for a Sandman and from the tags I would say it was nicely optioned Kingswood, not rare or super special, the 308 in the HJ came with the TH400 when optioned as an auto, being a 2 seater it would probably have a T-bar from the factory.
Bookmarks