Vin # question

[cflfan_2004]

I just recently bought a comanchee. They said it was a 1988. The sticker on the door is faded and can't be read. The vin stamped on the dash is only 16 digits. A friend said to just put a 1 in front of it as it starts with JT. When i do this and decript it only it comes up as a 1986. Some sites even say its a AMC but its clearly badged as a jeep. Does anyone know anything about some that came with a 16 digit vin?

[eaglescout526]

So what’s the last 8? The last 8 can tell us the model year. As for AMC, AMC owned Jeep from 1970-1988. 86 is a weird year but some are labeled as AMC and others as a Jeep but it’s still a Jeep. So no need to be concerned there. Feel free to gander the registry as well. 
GT is 86

HT is 87

JT is 88

[cflfan_2004]

The vin stamped on the dash is

JTHE6574GT161164

[eaglescout526]

That would make it an 86. Double check the one on either the front radiator support(86 only) or the firewall(87-92) to see if the VIN matches. It is possible someone swapped dashes around and not the VIN plate for the dash. 

[cflfan_2004]

Thanks ill try find those other spots next time i get a chance