Has anyone heard of a 68 1/2 production run?
Im sorry that you didn't like what I hat to say but.... The only thing about your car that says 68 is a shady vin.
Ask yourself... why would someone put everything from a 69 on a 68? 1/4s, fenders, grill, hood, side trim?
It would be easy to tell if the 1/4s were replaced. Post a bunch of pics.
Trust me... I wouldn't be happy and I would have questions too if it were my car.
Stolen with a vin swap is simply the most reasonable explanation.
Other options..... Dash fire.... Um... Thats all i can think of.
Either way..... A 68 GTS vin tag does not turn a 69 Dart into a 68 GTS.