I purchased this car after speaking with the list of owners especialy the original owner to verify the Z28. I was aware that some of the drivetrain was not original and as maybe some parts not original as with any 40 year old car some items can not be original, but better said as "correct" for the car. The car is simply gorgeous and a high end restoration on a California , all original sheetmetal, car and very correct.I have never seen such gogeous pans and undersides. I will give you a call today on your cell and talk about the car and discuss the report. I love the car and do not need an original drivetrain but a correct one will do. Provenance and historical documentation is key to me. The cold valve adjustment worked perfect and the car screams. The stories behind a car that is 40 years old is just as much fun as the car itself and I have gathered many on the Z28. No disrespect ever, and you are the Z28 Guru and I would like to talk further about my car. I will give you a call tomarrow when you are back from your travels. Thanks Jerry, Kindest reguards Capt. Jason.