1999 GMC Sonoma 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 1999 GMC Sonoma Regular Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x120.65 (5x4.75") |
|---|---|
| Lug Nut / Bolt Size | 12x1.5 |
| Center Bore (CB) | 70.3 mm |
| Offset (ET) | 0-13 |
| Torque Specs | 80 ft-lbs (108 Nm) |
1999 Sonoma Regular Cab — Year-Specific Fitment Context
The 1999 GMC Sonoma Regular Cab is in year 8 of 12 using the 5x120.65 pattern (1992–2003). Wheels from any 1992–2003 GMC Sonoma Regular Cab are cross-compatible with the 1999 model.
GMC Sonoma Regular Cab Bolt Pattern by Year
The table below shows how the Sonoma Regular Cab's wheel specifications have changed over the years. The 1999 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1992 | 5x120.65 | 70.3 | 0-13 |
| 1993 | 5x120.65 | 70.3 | 0-13 |
| 1994 | 5x120.65 | 70.3 | 0-13 |
| 1995 | 5x120.65 | 70.3 | 0-13 |
| 1996 | 5x120.65 | 70.3 | 0-13 |
| 1997 | 5x120.65 | 70.3 | 0-13 |
| 1998 | 5x120.65 | 70.3 | 0-13 |
| ▸ 1999 | 5x120.65 | 70.3 | 0-13 |
| 2000 | 5x120.65 | 70.3 | 0-13 |
| 2001 | 5x120.65 | 70.3 | 0-13 |
| 2002 | 5x120.65 | 70.3 | 0-13 |
| 2003 | 5x120.65 | 70.3 | 0-13 |
Fitment Notes
The 1999 GMC Sonoma Regular Cab has a bolt pattern of 5x120.65.
Imperial Conversion: This bolt pattern is commonly referred to as 5x4.75" in imperial units. When searching for aftermarket wheels, you may see them listed as 5x4.75".
This means it is a 5 lug pattern with a circle diameter of 120.65mm. When shopping for aftermarket wheels, ensure the "lug pattern" or "PCD" matches these numbers.
Year-to-Year Fitment Context
In our dataset, GMC Sonoma Regular Cab appears from 1992 to 2003 (12 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: 13.0 mm
5x120.65 Pattern Context
This bolt pattern appears on 202 vehicles in our current database and is considered moderately common.
Examples of other vehicles using 5x120.65:
1999 GMC Sonoma Regular Cab — Frequently Asked Questions
What is the bolt pattern for a 1999 GMC Sonoma Regular Cab?
The 1999 GMC Sonoma Regular Cab uses a 5x120.65 bolt pattern (also called lug pattern or PCD). The center bore is 70.3mm and the offset is 0-13mm.
What other years of GMC Sonoma Regular Cab have the same bolt pattern as the 1999?
The GMC Sonoma Regular Cab uses the 5x120.65 pattern from 1992 through 2003. Wheels from any of these model years are dimensionally compatible with the 1999, provided the offset and center bore also match.
Can I use spacers on my 1999 GMC Sonoma Regular Cab?
Yes, but ensure the wheel spacers match the 5x120.65 bolt pattern and 70.3mm center bore. Also verify that you have enough thread engagement for your 12x1.5 hardware.
What lug nut size does the 1999 GMC Sonoma Regular Cab use?
The 1999 GMC Sonoma Regular Cab uses 12x1.5 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
Can I put aftermarket wheels on my 1999 GMC Sonoma Regular Cab?
Absolutely. Just ensure the aftermarket wheels have a 5x120.65 bolt pattern, an offset near 0-13mm, and a center bore of at least 70.3mm (using hub rings if larger).
Will wheels from another GMC fit my 1999 Sonoma Regular Cab?
Only if they share the exact same 5x120.65 bolt pattern, a compatible offset, and a center bore equal to or larger than 70.3mm.
Fitment Checklist Before You Buy Wheels
- Verify thread pitch before installation; M12x1.25 and M12x1.5 are not interchangeable.
- Torque lugs in a star pattern to 80 ft-lbs (108 Nm), then re-check torque after 50-100 km (30-60 miles).
Editorial Fitment Notes
GMC Sonoma Regular 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: 1992-2003 (12 model years).
- Observed bolt-pattern variants: 1 (5x120.65).
- Observed total offset span across years: 13.0 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 1999 GMC Sonoma Regular Cab, please report it via our About page contact so we can verify and update this record.