83 T-bird with a 460
Reply #10 –
9Z is the paint code for the Silver on your car, the paint code for the Medium Grey on your car is 91, however that Medium Grey (code 91) was a new color for 1988.
In 1987, the Medium Grey had a paint code of 18. So assuming that the car in the auction was painted the 1987 color as he states, the paint code should be 18.
Brent