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

Tire size calculatorShow

Compare two tire sizes — diameter, speedometer error, and clearance change.

inchmm
Size 1Size 2DiffDiff(%)
Diameter25.0"25.4"0.5"1.89%
Width7.7"8.5"0.8"10.26%
Circumference78.4"79.9"1.5"1.86%
Profile height5.0"4.2"-0.7"-15.08%
Turnover per mile80779314-1.73%
Clearance--+0.2"-
25.0"
7.7"
old tire side
25.5"
8.5"
new tire side
old tire
15"
old rim
5.0"
new tire
17"
new rim
4.2"

Speedometer Error

(First wheel OEM size)

Reading20 mph30 mph40 mph50 mph60 mph70 mph80 mph90 mph
Actual20.430.540.750.961.171.281.491.6