2005 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 2005 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.
2005 Savana 1500 Passenger — Year-Specific Fitment Context
The 2005 GMC Savana 1500 Passenger is in year 10 of 19 using the 6x139.7 pattern (1996–2014). Wheels from any 1996–2014 GMC Savana 1500 Passenger are cross-compatible with the 2005 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 2005 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 2005 GMC Savana 1500 Passenger
For your 2005 GMC Savana 1500 Passenger, the 6x139.7 bolt pattern is shared across 1996–2014 models, ensuring broad compatibility. Critical fitment factors: the 78.1mm center bore requires hub-centric rings for aftermarket wheels to prevent vibration and load stress. Offset must stay within 20-30mm to avoid rubbing or suspension interference. Always use 14x1.5 lug nuts with the correct seat type (cone or ball) matching your wheel; mismatched seats cause loosening. Re-torque after 50-100 miles. Verify wheel load rating exceeds vehicle GVWR.
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 to 140 ft-lbs after 50-100 miles of driving.
- ✅ Aftermarket wheels often have larger center bores; use 78.1mm hub rings to ensure centering.
- ✅ Check for caliper clearance with 20mm offset wheels; some aftermarket designs may require spacers.
- ⚠️ 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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2005 GMC Savana 1500 Passenger — Frequently Asked Questions
What is the bolt pattern for a 2005 GMC Savana 1500 Passenger?
The 2005 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 2005?
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 2005, provided the offset and center bore also match.
Can I put aftermarket wheels on my 2005 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).
What does 20-30mm offset mean for the 2005 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 2005 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.
Do 2005 GMC Savana 1500 Passengers use lug bolts or lug nuts?
The 2005 Savana 1500 Passenger requires 14x1.5 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
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