Build Date from VIN?

Mike P 52 said
".........can you ascertain the build date from the last 6 numbers of the VIN?......"

I have the same question about my 68 Valiant. I just basically want to see if I can determine if mine was built before or after 1 Jan 68. According to the VIN the car was built at Hamtramck.

When I bought it there was no data plate and the original engine, trans and rear end were long gone. I was wondering if the number on the trunk lip (which is not a partial VIN) might be able to be decoded for an approximate date?

Anyway any help would be appreciated.

For whatever it's worth. In my estimation your only hope of getting marginally close to your build date is to find other '68 Valiant vin tags with build dates and a vin close to your vin. Ex; your last 6 are 123456 You find a '68 Valiant whose vin is 123999 with a build date of 9/26/67, then you will have an approximate date for yours.