What is the spare tire size on a 1980 z28 camaro?

The spare tire size on a 1980 Camaro Z28 varied slightly depending on the options selected by the original owner. Most commonly, it was a T155/80D13. However, some might have had a slightly different size depending on the original tire size fitted to the car. It's best to check your owner's manual (if you have it) or look at the spare tire itself for the definitive answer.