2007 GMC Sierra (Classic) 1500 Crew Cab Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2007 GMC Sierra (Classic) 1500 Crew Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 6x139.7 (6x5.5") |
|---|---|
| Lug Nut / Bolt Size | 14x1.5 |
| Center Bore (CB) | 78.1 mm |
| Offset (ET) | 20-30 |
| Torque Specs | 100 ft-lbs (135 Nm) |
2007 Sierra (Classic) 1500 Crew Cab — Year-Specific Fitment Context
The 2007 is the only model year of the GMC Sierra (Classic) 1500 Crew Cab in our database using the 6x139.7 bolt pattern.
Fitment Notes
The 2007 GMC Sierra (Classic) 1500 Crew Cab has a bolt pattern of 6x139.7.
Imperial Conversion: This bolt pattern is commonly referred to as 6x5.5" in imperial units. When searching for aftermarket wheels, you may see them listed as 6x5.5".
This means it is a 6 lug pattern with a circle diameter of 139.7mm. When shopping for aftermarket wheels, ensure the "lug pattern" or "PCD" matches these numbers.
Year-to-Year Fitment Context
In our dataset, GMC Sierra (Classic) 1500 Crew Cab appears from 2007 to 2007 (1 model years).
Across recorded model years, this model generally keeps the same bolt pattern.
- Observed bolt-pattern variants for this model: 1
- Observed center-bore variants for this model: 1
- Observed lug-size variants for this model: 1
- Observed total offset span across years: 50.0 mm
6x139.7 Pattern Context
This bolt pattern appears on 1067 vehicles in our current database and is considered common.
Examples of other vehicles using 6x139.7:
2007 GMC Sierra (Classic) 1500 Crew Cab — Frequently Asked Questions
What is the bolt pattern for a 2007 GMC Sierra (Classic) 1500 Crew Cab?
The 2007 GMC Sierra (Classic) 1500 Crew Cab uses a 6x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 78.1mm and the offset is 20-30mm.
What is the center bore of a 2007 GMC Sierra (Classic) 1500 Crew Cab?
The factory center bore (hub bore) for the 2007 GMC Sierra (Classic) 1500 Crew Cab is 78.1mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
Can I put aftermarket wheels on my 2007 GMC Sierra (Classic) 1500 Crew Cab?
Absolutely. Just ensure the aftermarket wheels have a 6x139.7 bolt pattern, an offset near 20-30mm, and a center bore of at least 78.1mm (using hub rings if larger).
Can I use spacers on my 2007 GMC Sierra (Classic) 1500 Crew Cab?
Yes, but ensure the wheel spacers match the 6x139.7 bolt pattern and 78.1mm center bore. Also verify that you have enough thread engagement for your 14x1.5 hardware.
What is the factory wheel offset for a 2007 GMC Sierra (Classic) 1500 Crew Cab?
The OEM offset for the 2007 Sierra (Classic) 1500 Crew Cab is typically around 20-30mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
What is the PCD for a 2007 GMC Sierra (Classic) 1500 Crew Cab?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2007 Sierra (Classic) 1500 Crew Cab, the PCD is 6x139.7.
Fitment Checklist Before You Buy Wheels
- This fitment uses a wide offset range. Check brake clearance and fender clearance before buying wheels.
- Torque lugs in a star pattern to 100 ft-lbs (135 Nm), then re-check torque after 50-100 km (30-60 miles).
Editorial Fitment Notes
GMC Sierra (Classic) 1500 Crew Cab is generally consistent in bolt-pattern records across model years, but offset and hardware should still be validated before purchase.
- Observed production years in our database: 2007-2007 (1 model years).
- Observed bolt-pattern variants: 1 (6x139.7).
- Observed total offset span across years: 50.0 mm.
- Observed center-bore variants: 1 | lug-size variants: 1.
Data Quality & Review
Source note: Compiled from manufacturer fitment references, historical wheel data, and internal normalization rules.
Last reviewed: 2026-05-26 | Reviewed by: Bolt Pattern HQ Editorial Team
If you find a discrepancy for 2007 GMC Sierra (Classic) 1500 Crew Cab, please report it via our About page contact so we can verify and update this record.