What is the bolt pattern on a 2008 Chevy Trailblazer SS?
The 2008 TrailBlazer SS uses a six-lug wheel pattern on a 5.5-inch bolt circle, with a center bore around 76.1 mm. This configuration is typical for the GMT360 platform vehicles and affects which wheels will fit without modification.
In the context of wheel compatibility, knowing the exact bolt pattern helps you select appropriate OEM replacements or aftermarket wheels. The TrailBlazer SS shares its basic wheel layout with other GMT360 siblings, which streamlines cross-compatibility for many wheel options. However, always verify hub bore, offset, and lug nut type before purchase to ensure a precise, safe fit.
Bolt pattern specifics
Details about the TrailBlazer SS bolt pattern are summarized here to help with wheel selection and fitment checks.
- Lug count: 6
- Bolt circle diameter: 139.7 mm (5.5 inches)
- Center bore: ~76.1 mm (3.0 inches)
With these specifications, most wheels designed for 6x139.7 mm will fit physically, but you should confirm offset, width, and hub bore compatibility for a safe, proper installation. When in doubt, consult the wheel manufacturer or a qualified shop to confirm compatibility.
Practical considerations for wheel upgrades
Beyond the bolt pattern, several practical factors influence wheel choices for the TrailBlazer SS, including hub centering, offset, and lug hardware. The notes below help you navigate common upgrade scenarios.
- Hub-centric rings may be needed if a wheel's center bore is smaller than 76.1 mm to reduce vibration and ensure proper centering.
- Offset and width should align with the vehicle’s suspension geometry to avoid rubbing and maintain proper steering response.
- Verify lug nut type and seat, as GM vehicles commonly use specific seat designs and thread pitches; mismatches can affect seat integrity and safety.
These practical checks help ensure that any wheel upgrade maintains safety, performance, and ride quality on the TrailBlazer SS.
Summary: The 2008 Chevy TrailBlazer SS uses a 6x139.7 mm bolt pattern with a ~76.1 mm center bore. This information is essential for proper wheel selection and installation, and should be complemented with offset, width, and hub bore considerations for a safe, optimal fit.
What lug pattern is the same as 5x127?
A 5x127 (or 5x5) bolt pattern can be converted to other patterns like 5x114.3 (5x4.5) or 5x139.7 (5x5.5) using wheel adapters or spacers. These parts are bolted to the vehicle's hub, and their design converts the existing bolt pattern to a new one, allowing wheels with a different bolt pattern to be installed. It is critical to ensure the adapter is designed for your specific vehicle and the wheel you intend to use, as well as that it is installed correctly to avoid damage.
How it works
- Wheel adapters and spacers: are custom-made metal plates that bolt onto your existing wheel hubs.
- They feature a different bolt pattern on the other side, which then connects to your new wheels.
- For example, an adapter for a 5x127 to 5x114.3 conversion would have five studs for a 5x127 pattern on the side that mounts to the vehicle, and five holes for a 5x114.3 pattern on the side that the new wheel mounts to.
Common conversions
- 5x127 (5x5) to 5x114.3 (5x4.5): Many modern cars use the 5x127 bolt pattern, and wheel adapters can convert this to the more common 5x114.3 pattern.
- 5x127 (5x5) to 5x139.7 (5x5.5): A popular conversion for older trucks and SUVs that can be converted from 5x127 to a 5x139.7 pattern, notes Amazon.com.
Important considerations
- Select the correct adapter: Make sure you are buying the correct adapter for your vehicle and the wheel you want to use. Double-check the size and specifications before purchasing.
- Proper installation: Always follow the installation instructions carefully. Overtightening lug nuts can cause damage, and it is recommended to torque them to the manufacturer's specifications.
- Hub clearance: Some adapters are thicker than others and may require shortening the factory wheel studs to ensure the wheel sits flush against the adapter. Consult the adapter's specifications to see if this is necessary.
What is the bolt pattern on a 2008 Chevy TrailBlazer?
The 2008 Chevrolet Trailblazer has a 6x127 (6-lug on a 127mm diameter) bolt pattern, which is also equivalent to a 6x5 inch pattern.
- Bolt pattern: 6x127 (also written as 6x5 inches).
- Number of lugs: 6.
- Diameter: 127mm.
What is the bolt pattern on a 2009 Chevy TrailBlazer SS?
Chevrolet TrailBlazer Bolt Pattern - Generations:
| Generation | Production Years | Bolt pattern |
|---|---|---|
| KC [2001 .. 2009] | 2001-2009 | 6x127 |
| RG [2012 .. 2016] | 2013-2016 | 6x139.7 |
| RG Facelift [2016 .. 2023] | 2017-2023 | 6x139.7 |
| VSS-F [2019 .. 2024] | 2019-2024 | 5x115 |
What bolt pattern is a TrailBlazer SS?
6x139.7
"Trailblazer SS with a GM 1500 Fitment Chrome Rims 20x9 Replica Wheels | Bolt Pattern: 6x139. 7 (6x5.
