The Cj4 was a development tool for the military.
from this came several military models and the CJ line got the CJ5 and CJ6
here are a flow chart and another chart with the CJ4 identified
notice the 4 jeeps in the middle of this chart, they are all CJ4 development Jeeps
There have been rumors for years that only one was made but there is paper work found from Jeep where the CJ4 is mentioned along with regular production models. Something a one off model would not have.Plus Engineering papers for spring rates.
A new example has been found, debunking the idea there was only 1, here are some pictures of the 2 we know of to still exist.
the new find
and now for pictures of military models
is this a military, or a third Civilian?
Production Numbers seem to be lost, and the Army has a habit of destroying models after they test them. For those reasons we may never know how many of the CJ4s were produced, however it looks to be from the number of models in these pictures that they tested quite a few, Personally I feel if several hundred were made it would be a low number.
Lost in history, the CJ4.