7100?

[lexadmn]

I just bought another truck, but do not know much about it (the PO does not either) nor do I see much info on the Internet and hope someone here may know a little about it.

This is a Chevy with a tilt fiberglass front and the cab says 7100. This looks very similar to my 76 C60 inside and out - except for the tilt hood.
Not sure of the year, and he was not sure either - maybe 1980? He is looking for the title and agreed if this cannot be found, he will apply for a lost title.

What I do know ----
It does have the 20" split rim wheels but more lugs (I did not count, but maybe 12 lugs?). The rear lugs have the square head stud.
6 speed trans.
Detroit 4-71T maybe??.
It is a 4 cylinder Detroit (Detroit is stamped on the valve cover) diesel with a turbo feeding a roots blower.
Hydraulic brakes.
The GVW tag says 24,000 lbs.

I am not finding with my searches where a 7100 exists.

KC