Sorry antp, missed your comment.

Yes, this one is 1984+ FLT:

https://www.imcdb.org/vehicle_2072035-Freightliner-FLA-1989.html

And yes, all Galant up to 1975 should be Valiant Galant.

I don't know about this one since it's not in Australia: https://www.imcdb.org/vehicle_1947210-Chrysler-Galant-GC.html

More:

1989+:

https://www.imcdb.org/vehicle_527366-Freightliner-FLA.html

1984+:

https://www.imcdb.org/vehicle_1737630-Freightliner-FLT.html
https://www.imcdb.org/vehicle_2015696-Freightliner-FLT.html
https://www.imcdb.org/vehicle_1519183-Freightliner-FLT-1985.html
https://www.imcdb.org/vehicle_138317-Freightliner-FLT.html
https://www.imcdb.org/vehicle_1265414-Freightliner-FLA-1985.html
https://www.imcdb.org/vehicle_1451233-Freightliner-FLA.html
https://www.imcdb.org/vehicle_149278-Freightliner-FLT.html (FLA not FLT)
https://www.imcdb.org/vehicle_407322-Freightliner-FLA.html (FLT not FLA)

Not 1984:

https://www.imcdb.org/vehicle_507568-Freightliner-FLT-1984.html