The GMC CCKW

Just wondering which type
gauge is more common in
the WWII 1 1/2 ton Chevys. I have
four cabs and three of them have the
civilian gauges. The latest being a
Sept 42 truck. The one truck that
does have military type gauges is
a 42 panel.
Just wondering what everyone else
has noticed.

The early "Y" models had the civy gauges.
The last "N" models had the round gauges.
The mid "Z" models had ??? I don't remember