1999 Pontiac Firebird tire sizes
The 1999 Pontiac Firebird came from the factory with 3 tire sizes on 16" to 17" wheels. The most common size is 275/40 R17. Pick your trim below.
1999 Firebird Base Model
Factory (OE) sizes
16"wheels
Optional sizes
16"wheels
1999 Firebird Convertible
Factory (OE) sizes
16"wheels
Optional sizes
16"wheels
1999 Firebird Firehawk
Factory (OE) sizes
17"wheels
1999 Firebird Formula
Factory (OE) sizes
16"wheels
Optional sizes
17"wheels
1999 Firebird Formula WS6
Factory (OE) sizes
17"wheels
1999 Firebird Trans Am
Factory (OE) sizes
16"wheels
Optional sizes
17"wheels
1999 Firebird Trans Am WS6
Factory (OE) sizes
17"wheels
How to read 275/40 R17
- 275
- Tread width in millimetres
- 40
- Sidewall height, % of width
- R
- Radial construction
- 17
- Wheel diameter in inches
Overall diameter: about 25.7" · Sidewall: 110 mm