My car- 1968 cuda BB, 4-sp, restored "matching numbers". Yes, 1968 is first year Mopar put VIN numbers on mechanical parts to put an end to "fake" cars. These numbers are in addition to build numbers. In 1968 the engine VIN number is stamped on the top of the engine near the belhousing mounting, near the oil sender on big block cars. The 4-sp VIN number is on the ID boss cast into the trans on the right side near the oil fill hole. It contains production number and VIN number. The car itself has the VIN number in three places- the dash, the radiator support and the trunk weatherstrip area, left side. On a "matching numbers car"- all five of these places will have the same number.
