Intermediate Vin Sequence By Month /yr

Is there a record of the intermediate Vin kept by anyone . I see value in keeping such records

 

Not that I know off. Prior to 1972, the serial number part of the VIN continued to increase from year to year, so knowing the number tells you something about the date of production. From 1972 onward, the sequential serial number part of the VIN was restarted for every model year, so it does not tell you anything other than the order of production for that year. Also, the numbers were assigned to all Jeep vehicles as they came off the line, so the number does not tell you anything about production totals or production order for each model. Most of these Jeeps also have a sticker that says the month of production, so there's not a lot of advantage to keeping track of VINs since the date of production is already pretty much known. You can also look at the production dates of the engines and axles, and infer a fairly accurate production date.