2006 GMC Sierra 2500 HD Regular Cab Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2006 GMC Sierra 2500 HD Regular Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 8x165.1 (8x6.5") |
|---|---|
| Lug Nut / Bolt Size | 14x1.5 |
| Center Bore (CB) | 116.7 mm |
| Offset (ET) | 20-40 |
| Torque Specs | 140 ft-lbs (190 Nm) |
Imperial Match: 8x165.1 is commonly referred to as 8x6.5" in US Standard.
2006 Sierra 2500 HD Regular Cab — Year-Specific Fitment Context
The 2006 GMC Sierra 2500 HD Regular Cab is in year 8 of 12 using the 8x165.1 pattern (1999–2010). Wheels from any 1999–2010 GMC Sierra 2500 HD Regular Cab are cross-compatible with the 2006 model. Across its full production run (1999–2024), the Sierra 2500 HD Regular Cab has also used: 8x180.
GMC Sierra 2500 HD Regular Cab Bolt Pattern by Year
The table below shows how the Sierra 2500 HD Regular Cab's wheel specifications have changed over the years. The 2006 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1999 | 8x165.1 | 116.7 | 20-40 |
| 2000 | 8x165.1 | 116.7 | 20-40 |
| 2001 | 8x165.1 | 116.7 | 20-40 |
| 2002 | 8x165.1 | 116.7 | 20-40 |
| 2003 | 8x165.1 | 116.7 | 20-40 |
| 2004 | 8x165.1 | 116.7 | 20-40 |
| 2005 | 8x165.1 | 116.7 | 20-40 |
| ▸ 2006 | 8x165.1 | 116.7 | 20-40 |
| 2007 | 8x165.1 | 116.7 | 20-40 |
| 2008 | 8x165.1 | 116.7 | 20-40 |
| 2009 | 8x165.1 | 116.7 | 20-40 |
| 2010 | 8x165.1 | 116.7 | 20-40 |
| 2011 | 8x180 | 124.9 | 44 |
| 2012 | 8x180 | 124.9 | 44 |
| 2013 | 8x180 | 124.9 | 44 |
| 2014 | 8x180 | 124.9 | 44 |
| 2015 | 8x180 | 124.9 | 44 |
| 2016 | 8x180 | 124.9 | 44 |
| 2017 | 8x180 | 124.9 | 44 |
| 2018 | 8x180 | 124.9 | 44 |
| 2019 | 8x180 | 124.9 | 44 |
| 2021 | 8x180 | 124.9 | 44 |
| 2022 | 8x180 | 124.9 | 44 |
| 2023 | 8x180 | 124.9 | 44 |
| 2024 | 8x180 | 124.9 | 44 |
8x165.1 Pattern Context
This bolt pattern appears on 846 vehicles in our current database and is considered common.
Examples of other vehicles using 8x165.1:
Expert Buying Guide for 2006 GMC Sierra 2500 HD Regular Cab
For your 2006 GMC Sierra 2500 HD Regular Cab, the bolt pattern is 8x165.1mm with a critical center bore of 116.7mm. Aftermarket wheels often have a larger bore, requiring hub-centric rings to prevent vibration and ensure proper load distribution. Offset must stay within 20-40mm; deviations risk rubbing or suspension interference. Always use the correct 14x1.5 lug nuts with the appropriate seat (cone or ball) to avoid loosening. Wheels from 1999-2010 Sierra 2500 HD models are direct fit. Verify all specs before purchase.
Historical Fitment Data Reference
In our dataset, GMC Sierra 2500 HD Regular Cab appears from 1999 to 2024 (25 model years). Across model years, this model appears with 2 bolt patterns (8x165.1, 8x180).
- Observed bolt-pattern variants for this model: 2
- Observed center-bore variants for this model: 2
- Observed lug-size variants for this model: 1
- Observed total offset span across years: 84.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to maintain clamping force.
- ✅ Aftermarket wheels may require hub-centric rings; ensure they are aluminum or steel for durability.
- ✅ Check wheel clearance with brake calipers and suspension components, especially with offset near 20mm.
- ⚠️ This fitment uses a wide offset range. Check brake clearance and fender clearance before buying wheels.
- ⚠️ Torque lugs in a star pattern to 140 ft-lbs (190 Nm), then re-check torque after 50-100 km (30-60 miles).
- ⚠️ This model has multiple bolt-pattern records across years. Match wheels to exact year/trim before purchase.
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2006 GMC Sierra 2500 HD Regular Cab — Frequently Asked Questions
What is the bolt pattern for a 2006 GMC Sierra 2500 HD Regular Cab?
The 2006 GMC Sierra 2500 HD Regular Cab uses a 8x165.1 bolt pattern (also called lug pattern or PCD). The center bore is 116.7mm and the offset is 20-40mm.
What other years of GMC Sierra 2500 HD Regular Cab have the same bolt pattern as the 2006?
The GMC Sierra 2500 HD Regular Cab uses the 8x165.1 pattern from 1999 through 2010. Wheels from any of these model years are dimensionally compatible with the 2006, provided the offset and center bore also match.
What is the PCD for a 2006 GMC Sierra 2500 HD Regular Cab?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2006 Sierra 2500 HD Regular Cab, the PCD is 8x165.1.
How do I measure the bolt pattern on my 2006 GMC?
The 2006 Sierra 2500 HD Regular Cab uses a 8x165.1 pattern. For 4, 6, or 8-lug wheels, measure center-to-center across opposite holes. For 5-lug, measure from the center of one hole to the back of the opposite hole.
Why is matching the 116.7mm center bore important for the 2006 Sierra 2500 HD Regular Cab?
The 116.7mm center bore ensures the wheel is perfectly centered on the hub. If the wheel is lug-centric instead of hub-centric, you may experience steering wheel vibration at highway speeds.
What does 20-40mm offset mean for the 2006 Sierra 2500 HD Regular Cab?
An offset of 20-40mm means the wheel's mounting surface is 20-40mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your GMC.
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