I have most of a 1958 tr3. I have the TS number for the engine TS 37845, transmission TS 37923 , and differential TS 37999. However, I do not have the Vin TS for the car. I was thinking if I send out for a Heritage Certification with what I have they might send me the Vin number with the certification. My guess is the Vin is probably TS 378**-- anyone have any idea if my idea might work? Or a better plan to figure out the vin or get closer to the number, so the Heritage people might do some easy research?