Yes, I have repaired vehicles involving moving the VIN in Texas, and yes, worked the the DPS, and yes, no problem of cutting and welding. They wanted to see both titles, showed the parts were the same, and no issue at all.
Using the same concept:
The fastback shown was a 67, and if one replaced front frame rails, shock towers, front and rear aprons, core support etc., basically the front clip: VIN issue ?
But if it would have been a 1968, replacing the same thing would have no impact on the VIN area, but it is the exact same parts? Logic
What about putting a 1968 front clip on a 1967 ? What then, no VIN anywhere?
What about putting a 1967 clip on a 1968: Dueling VIN's? Is the front clip the "car" in 1967 and the "dash area" the car in 1968 ? If the 67 was a GT350 and the 68 was a GT500, would the merger be a GT150, GT425, or GT850?
Then, if you want to go off into the weeds, there are 3 cars, all legitimately titled, all with the same factory stamped VIN, which started off life as a single car, but were not titled in the same state.
We have had the discussion before, and most people quote opinion or thoughts, few have ever repaired a vehicle and gotten guidance from the state title office, DPS for Texas.
Where does it end?
Replacing everything in front of the VIN stamp: No issue.?
Replacing everything behind the VIN stamp? No issue
ed ay +3112
1968 GT500 Arrest Me Red (The Big Boy Toy)
1966 K Code Vert (The K 'Vert)