Pontiac Wheel Lug Pattern Catalog - PCD, Offset & Center Bore Reference
Discover precise Pontiac wheel lug pattern information designed to assist vehicle owners in finding compatible wheels and tires. This catalog organizes lug count × PCD measurements, offset (ET), and center bore diameters specific to Pontiac models, ensuring proper wheel fitment accuracy.\n\nEach Pontiac vehicle model is listed with references sorted by production years, making it easy to identify the exact wheel mounting details necessary for upgrades or replacements. Understanding the lug pattern and wheel offset helps prevent fitment issues and supports safe driving performance.\n\nUse this resource to compare Pontiac bolt patterns and related dimensions critical to choosing the right wheels or tires for your vehicle. Whether you are planning a wheel upgrade or reviewing OEM specifications, this Pontiac lug pattern catalog serves as a reliable technical guide.
15 models
- Aztec2005, 2004, 2003, 2002, 2001
- Bonneville VIII2005, 2004, 2003, 2002, 2001, 2000, 1999
- Firebird2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995
- G52007
- G62007, 2006, 2005
- G82019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008
- Grand AM2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998
- Grand Prix2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996
- GTO2007, 2006, 2005, 2004
- Montana2005, 2004, 2003, 2002, 2001, 2000
- Solstice2007, 2006
- Sunfire2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995
- Torrent2007, 2006
- Trans Sport2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, 1992, 1991, 1990, 1989
- Vibe2007, 2006, 2005, 2004, 2003, 2002
Tire size calculatorShow
Compare two tire sizes — diameter, speedometer error, and clearance change.
| Size 1 | Size 2 | Diff | Diff(%) | |
|---|---|---|---|---|
| Diameter | 25.0" | 25.4" | 0.5" | 1.89% |
| Width | 7.7" | 8.5" | 0.8" | 10.26% |
| Circumference | 78.4" | 79.9" | 1.5" | 1.86% |
| Profile height | 5.0" | 4.2" | -0.7" | -15.08% |
| Turnover per mile | 807 | 793 | 14 | -1.73% |
| Clearance | - | - | +0.2" | - |






Speedometer Error
(First wheel OEM size)
| Reading | 20 mph | 30 mph | 40 mph | 50 mph | 60 mph | 70 mph | 80 mph | 90 mph |
|---|---|---|---|---|---|---|---|---|
| Actual | 20.4 | 30.5 | 40.7 | 50.9 | 61.1 | 71.2 | 81.4 | 91.6 |
