2007 Chevrolet Silverado (Classic) 1500 Extended 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 Chevrolet Silverado (Classic) 1500 Extended Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 6x139.7 (6x5.5") |
|---|---|
| Lug Nut / Bolt Size | N 14x1.50 |
| Center Bore (CB) | 78.1 mm |
| Offset (ET) | 16 |
| Torque Specs | 100 ft-lbs (135 Nm) |
Imperial Match: 6x139.7 is commonly referred to as 6x5.5" in US Standard.
2007 Silverado (Classic) 1500 Extended Cab — Year-Specific Fitment Context
The 2007 is the only model year of the Chevrolet Silverado (Classic) 1500 Extended Cab in our database using the 6x139.7 bolt pattern.
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:
Expert Buying Guide for 2007 Chevrolet Silverado (Classic) 1500 Extended Cab
For your 2007 Chevrolet Silverado (Classic) 1500 Extended Cab, the 6x139.7 bolt pattern and 78.1mm center bore are critical. Aftermarket wheels often have a larger center bore (e.g., 78.3mm or 87.1mm), requiring hub-centric rings to prevent vibration and ensure proper load transfer. The offset range is sensitive; stock offset is around +16mm. Deviating more than ±10mm may cause rubbing or clearance issues with suspension and brakes. Always use lug nuts with the correct thread pitch (14x1.50) and seat type—factory wheels use cone seats, while aftermarket wheels may require ball or flat seats. Improper lug nuts can lead to wheel loosening. Re-torque after 50 miles of driving.
Historical Fitment Data Reference
In our dataset, Chevrolet Silverado (Classic) 1500 Extended 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: 0.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 140 ft-lb after 50 miles, then periodically check.
- ✅ If using aftermarket wheels, verify hub-centric ring inner diameter matches 78.1mm and outer diameter matches wheel bore.
- ✅ Avoid spacers unless necessary; if used, ensure they are hub-centric and do not exceed 5mm to maintain proper offset.
- ⚠️ Torque lugs in a star pattern to 100 ft-lbs (135 Nm), then re-check torque after 50-100 km (30-60 miles).
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2007 Chevrolet Silverado (Classic) 1500 Extended Cab — Frequently Asked Questions
What is the bolt pattern for a 2007 Chevrolet Silverado (Classic) 1500 Extended Cab?
The 2007 Chevrolet Silverado (Classic) 1500 Extended Cab uses a 6x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 78.1mm and the offset is 16mm.
What does 16mm offset mean for the 2007 Silverado (Classic) 1500 Extended Cab?
An offset of 16mm means the wheel's mounting surface is 16mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your Chevrolet.
What is the PCD for a 2007 Chevrolet Silverado (Classic) 1500 Extended Cab?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2007 Silverado (Classic) 1500 Extended Cab, the PCD is 6x139.7.
How tight should I torque the lug nuts on a 2007 Chevrolet Silverado (Classic) 1500 Extended Cab?
Refer to your owner's manual for exact specs, but always tighten the N 14x1.50 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
Why is matching the 78.1mm center bore important for the 2007 Silverado (Classic) 1500 Extended Cab?
The 78.1mm 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 is the center bore of a 2007 Chevrolet Silverado (Classic) 1500 Extended Cab?
The factory center bore (hub bore) for the 2007 Chevrolet Silverado (Classic) 1500 Extended Cab is 78.1mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
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