2005 Pontiac GTO Wheel & Tire Sizes
Complete fitment guide for the 2005 Pontiac GTO: factory tire sizes, compatible wheel diameters, widths and offsets, and the 5x120 bolt pattern — for every trim.
Bolt Pattern
5x120
Centre Bore
69.5 mm
Lug nuts
M12 x 1.5
Wheel Diameters
17"–18"
Factory (OEM) Tire Sizes for the 2005 Pontiac GTO
OEM sizes
Click any size to shop tires in stock now — free shipping anywhere in Canada, optional installation at our 5 GTA locations.
2005 Pontiac GTO Wheel Fitment by Trim
Compatible wheel diameter, width and offset ranges for each 2005 Pontiac GTO configuration.
6.0i · Coupe
V8 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 17–18" |
| Wheel width | 8" |
| Wheel offset | 48 mm |
| Tire width | 235–245 mm |
2005 Pontiac GTO Fitment FAQ
What is the bolt pattern on a 2005 Pontiac GTO?
The 2005 Pontiac GTO uses a 5x120 bolt pattern (5 lug nuts on a 120 mm circle) with a 69.5 mm centre bore.
What size tires fit a 2005 Pontiac GTO?
Factory (OEM) tire sizes for the 2005 Pontiac GTO include 245/45ZR17, 235/40ZR18. Always confirm against the placard inside the driver's door jamb.
What wheel sizes can I put on a 2005 Pontiac GTO?
Depending on trim, the 2005 Pontiac GTO accepts wheels from 17" up to 18" in diameter with the correct width and offset — larger diameters typically require lower-profile tires to keep the overall rolling diameter stock.
What lug nut size does a 2005 Pontiac GTO use?
The 2005 Pontiac GTO uses M12 x 1.5 lug nuts.
Fitment data is provided as a guide. Always verify sizes against your vehicle's door-jamb placard or with our fitment experts before ordering.