1997 Chevrolet G-Series 1500 Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 1997 Chevrolet G-Series 1500, 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) | 24-28 |
| Torque Specs | 100 ft-lbs (135 Nm) |
1997 G-Series 1500 — Year-Specific Fitment Context
The 1997 Chevrolet G-Series 1500 is in year 2 of 3 using the 6x139.7 pattern (1996–1998). Wheels from any 1996–1998 Chevrolet G-Series 1500 are cross-compatible with the 1997 model.
Chevrolet G-Series 1500 Bolt Pattern by Year
The table below shows how the G-Series 1500's wheel specifications have changed over the years. The 1997 model year is highlighted.
Fitment Notes
The 1997 Chevrolet G-Series 1500 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, Chevrolet G-Series 1500 appears from 1996 to 1998 (3 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: 52.0 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:
1997 Chevrolet G-Series 1500 — Frequently Asked Questions
What is the bolt pattern for a 1997 Chevrolet G-Series 1500?
The 1997 Chevrolet G-Series 1500 uses a 6x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 78.1mm and the offset is 24-28mm.
What other years of Chevrolet G-Series 1500 have the same bolt pattern as the 1997?
The Chevrolet G-Series 1500 uses the 6x139.7 pattern from 1996 through 1998. Wheels from any of these model years are dimensionally compatible with the 1997, provided the offset and center bore also match.
Can I use spacers on my 1997 Chevrolet G-Series 1500?
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 does 24-28mm offset mean for the 1997 G-Series 1500?
An offset of 24-28mm means the wheel's mounting surface is 24-28mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your Chevrolet.
Do 1997 Chevrolet G-Series 1500s use lug bolts or lug nuts?
The 1997 G-Series 1500 requires 14x1.5 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
What is the center bore of a 1997 Chevrolet G-Series 1500?
The factory center bore (hub bore) for the 1997 Chevrolet G-Series 1500 is 78.1mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
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
Chevrolet G-Series 1500 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: 1996-1998 (3 model years).
- Observed bolt-pattern variants: 1 (6x139.7).
- Observed total offset span across years: 52.0 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 1997 Chevrolet G-Series 1500, please report it via our About page contact so we can verify and update this record.