What is the bolt pattern on a Chevy Suburban 6 lug?
The Chevy Suburban uses a 6x139.7mm bolt pattern (six lugs on a 5.5-inch circle). This is the standard setup for most full-size GM trucks and SUVs, including the Suburban, across many model years.
While the six-lug pattern is widely used, always verify the exact specification for your particular year and trim. Check the door jamb placard, owner’s manual, or a trusted parts dealer to account for any rare variations between generations.
Bolt pattern basics
Understanding bolt patterns starts with measuring the circle that passes through all lug holes. For the Suburban, there are six holes evenly spaced around a circle that measures 139.7 millimeters in diameter, which is commonly described as 6x139.7mm or 6x5.5 inches.
Below is a quick reference for the most common configuration you’ll encounter when shopping for wheels or adapters.
- Bolt pattern: 6x139.7mm (6 on 5.5 inches)
In practice, this pattern means wheels designed for 6x139.7mm applications from other GM models—such as Silverado 1500 and Tahoe—often fit the Suburban as long as hub bore, offset, and lug nut specifications are compatible. Always confirm these details before purchasing.
Generational notes and compatibility
Across many Suburban generations, the 6x139.7mm bolt pattern remains the norm. However, slight differences in hub bore or wheel offset can affect fitment, especially when mixing wheels from different GM platforms or aftermarket brands. When in doubt, consult the vehicle’s documentation or a wheel specialist to ensure a proper, safe fit.
Why it matters
The bolt pattern is a foundational specification for wheel compatibility. An incorrect pattern can prevent the wheel from seating correctly or compromise safety. The standard 6x139.7mm setup simplifies cross-compatibility among GM trucks and SUVs, but other factors like hub bore and offset still matter for a clean, reliable fit.
Summary
The Chevy Suburban commonly uses a 6x139.7mm (6 on 5.5 inches) bolt pattern, a configuration shared with many GM full-size trucks and SUVs. Always confirm the exact spec for your year and trim, and consider hub bore and offset in any wheel replacement or upgrade.
