I have a factory console tach for sale. I was told it came off of a 1964 Cutlass and may fit other models and years. Any info would be appreciated. It is a 6 cyl tach and I do not think it works as I hooked the center insulated terminal to the neg side of the coil on my car and grounded the tach to the positive side of the battery. Maybe it can be repaired. I would like to get $100 for it plus shipping.