never heard of franken dodge. however, as an expression, franken anything, usually means it was built using several parts that are not normally all on the same vehicle. rarely it may mean, a truck that is so over the top square headed and freakish that it is a "franken" truck. a few 5 ton trucks with internal ROPS are called out this way. that is meant in the same humorous way someone loves there vehicle but still regards it as less than normal vehicle, a monster so to speak.
I am no expert on the old flat fender dodges but something seems odd about the spare tire and running boards. the shape of the cab???
to me it looks like an early 1950's civilian dodge powerwagon with a bit of militarizing