F60L ARN 46660 Cab 12

[Ken Smith]

Ok a bit more research. I searched loading instead of machinery and workshop on the AWM site, and I came up with a "DI" loading instrument repair vehicle.
I think it is probably "D1" not "DI" as there is a "Z1" loading vehicle mentioned elsewhere.
When I searched this forum I found that some Lindsay C60X machinery body types are C1, D1 etc. I know that it is a pretty big leap going from Lindsay body designations to Australian made machinery bodies, but surely there was a common designation for Empire armies.
I might add that the designation in the AWM book for my truck is "D" alone.
I just read on a bit further in the ARNs and I see that 58206 is a "D1" so maybe there are variations.

Ken