[William]

Be real careful with old race cars. There is one well-known ZL-1 that is beyond re-body; the only original part is the VIN tag. Rumors persist about others.

If #29 was wrecked and was known as a ZL-1 at the time the same thing could have happened. Have someone who knows the cars well check out the hidden VINs, body tag and other features that would reveal a re-body.