2004 GMC Savana 1500 Passenger Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2004 GMC Savana 1500 Passenger, 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) |
Imperial Match: 6x139.7 is commonly referred to as 6x5.5" in US Standard.
2004 Savana 1500 Passenger — Year-Specific Fitment Context
The 2004 GMC Savana 1500 Passenger is in year 9 of 19 using the 6x139.7 pattern (1996–2014). Wheels from any 1996–2014 GMC Savana 1500 Passenger are cross-compatible with the 2004 model.
GMC Savana 1500 Passenger Bolt Pattern by Year
The table below shows how the Savana 1500 Passenger's wheel specifications have changed over the years. The 2004 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1996 | 6x139.7 | 78.1 | 20-30 |
| 1997 | 6x139.7 | 78.1 | 20-30 |
| 1998 | 6x139.7 | 78.1 | 20-30 |
| 1999 | 6x139.7 | 78.1 | 20-30 |
| 2000 | 6x139.7 | 78.1 | 20-30 |
| 2001 | 6x139.7 | 78.1 | 20-30 |
| 2002 | 6x139.7 | 78.1 | 20-30 |
| 2003 | 6x139.7 | 78.1 | 20-30 |
| ▸ 2004 | 6x139.7 | 78.1 | 20-30 |
| 2005 | 6x139.7 | 78.1 | 20-30 |
| 2006 | 6x139.7 | 78.1 | 20-30 |
| 2007 | 6x139.7 | 78.1 | 20-30 |
| 2008 | 6x139.7 | 78.1 | 20-30 |
| 2009 | 6x139.7 | 78.1 | 20-30 |
| 2010 | 6x139.7 | 78.1 | 20-30 |
| 2011 | 6x139.7 | 78.1 | 20-30 |
| 2012 | 6x139.7 | 78.1 | 20-30 |
| 2013 | 6x139.7 | 78.1 | 20-30 |
| 2014 | 6x139.7 | 78.1 | 20-30 |
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 2004 GMC Savana 1500 Passenger
For your 2004 GMC Savana 1500 Passenger, the 6x139.7 bolt pattern is shared across 1996–2014 models, ensuring broad cross-compatibility. Critical fitment factors: the 78.1mm center bore requires hub-centric rings for aftermarket wheels to prevent vibration and hub damage. Offset must stay within 20–30mm; deviations risk rubbing or suspension interference. Always use 14x1.5 lug nuts with the correct seat type—factory wheels use cone seats, while aftermarket may require ball or tapered seats. Mismatched seating can cause wheel loosening. Verify load rating matches your vehicle's GVWR. Safety first: improper fitment compromises handling and braking.
Historical Fitment Data Reference
In our dataset, GMC Savana 1500 Passenger appears from 1996 to 2014 (19 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
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50–100 miles of driving to ensure proper seating.
- ✅ Avoid universal fit wheels without hub-centric rings; they can cause vibration and hub wear.
- ✅ Check wheel clearance for 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 100 ft-lbs (135 Nm), then re-check torque after 50-100 km (30-60 miles).
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2004 GMC Savana 1500 Passenger — Frequently Asked Questions
What is the bolt pattern for a 2004 GMC Savana 1500 Passenger?
The 2004 GMC Savana 1500 Passenger 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 other years of GMC Savana 1500 Passenger have the same bolt pattern as the 2004?
The GMC Savana 1500 Passenger uses the 6x139.7 pattern from 1996 through 2014. Wheels from any of these model years are dimensionally compatible with the 2004, provided the offset and center bore also match.
What is the center bore of a 2004 GMC Savana 1500 Passenger?
The factory center bore (hub bore) for the 2004 GMC Savana 1500 Passenger is 78.1mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
What does 20-30mm offset mean for the 2004 Savana 1500 Passenger?
An offset of 20-30mm means the wheel's mounting surface is 20-30mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your GMC.
Will wheels from another GMC fit my 2004 Savana 1500 Passenger?
Only if they share the exact same 6x139.7 bolt pattern, a compatible offset, and a center bore equal to or larger than 78.1mm.
Can I put aftermarket wheels on my 2004 GMC Savana 1500 Passenger?
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).
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