The OEM size is 7.1x15"
Check out: http://classiccardatabase.com/ Look up Pontiac 1955 then select your model or for the Chieftain and scan the data under tire/wheel size. Good luck! 55 Poncho Guy
16 inches wheels. Correct tire size is 225/60-16
the size is on the side of the tire
The tire size for the 2000 Pontiac Grand Prix varies slightly with the model of the vehicle. The average tire size is 225/60 R16.
"64 and '65 were the same 14 x 6 wheels with Rally wheels as an option in '65. Tire size did change from 7.50 x 14 to 7.75 x 14 for "65. The tire options were the standard white wall and the US Royal red line tires.
1949 Pontiac Chieftain Eight Series 27 tire size is 7.1 x 15".
The standard tire size for a '66 GTO is 7.75x14.
The 1995 Pontiac Firebird can be fitted with 18x8-inch wheels granted they are designed for this application. A tire size that will work on these wheels are 275/40/18.
Recommended tire pressure is 32psi.
what is the original tire size for a 2004 trailblazer
14inch
6.70x15