1999 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 1999 GMC Savana 1500 Passenger, along with offset and center bore data.
1999 GMC Savana 1500 Passenger Wheel Fitment Specs
| Bolt Pattern (Lug Pattern) | 5x127 (5x5") |
|---|---|
| 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: 5x127 is commonly referred to as 5x5" in US Standard.
1999 Savana 1500 Passenger — Year-Specific Fitment Context
The 1999 model year is the final year of the GMC Savana 1500 Passenger's 5x127 bolt pattern run (since 1996). Wheels from any 1996–1999 GMC Savana 1500 Passenger are cross-compatible with the 1999 model. Important: starting in 2000, GMC switched to 6x139.7 — those wheels will not fit the 1999 model. Across its full production run (1996–2014), the Savana 1500 Passenger has also used: 6x139.7.
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 1999 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1996 | 5x127 | 78.1 | 20-30 |
| 1997 | 5x127 | 78.1 | 20-30 |
| 1998 | 5x127 | 78.1 | 20-30 |
| ▸ 1999 | 5x127 | 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 |
5x127 Pattern Context
This bolt pattern appears on 263 vehicles in our current database and is considered moderately common.
Examples of other vehicles using 5x127:
Expert Buying Guide for 1999 GMC Savana 1500 Passenger
For the 1999 GMC Savana 1500 Passenger, the 6x139.7 bolt pattern is shared across 1996–2014 models, ensuring cross-compatibility. However, the 78.1mm center bore is critical: aftermarket wheels often have a larger bore, requiring hub-centric rings to prevent vibration and ensure proper load distribution. Offset must stay within 20–30mm; deviations risk rubbing or suspension interference. Always use 14x1.5 lug nuts with the correct seat type (cone or ball) to match the wheel. Improper seating can cause loosening or wheel damage. Safety first: verify all specs before installation.
Historical Fitment Data Reference
In our dataset, GMC Savana 1500 Passenger appears from 1996 to 2014 (19 model years). Across model years, this model appears with 2 bolt patterns (5x127, 6x139.7).
- Observed bolt-pattern variants for this model: 2
- 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 maintain clamping force.
- ✅ Check for clearance between the wheel and brake calipers, especially with aftermarket offsets.
- ✅ Use a torque wrench set to manufacturer specifications (typically 140 ft-lbs) to avoid over-tightening.
- ⚠️ 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).
- ⚠️ This model has multiple bolt-pattern records across years. Match wheels to exact year/trim before purchase.
1999 GMC Savana 1500 Passenger — Frequently Asked Questions
What is the bolt pattern for a 1999 GMC Savana 1500 Passenger?
The 1999 GMC Savana 1500 Passenger uses a 5x127 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 1999?
The GMC Savana 1500 Passenger uses the 5x127 pattern from 1996 through 1999. Wheels from any of these model years are dimensionally compatible with the 1999, provided the offset and center bore also match.
Will 2000 GMC Savana 1500 Passenger wheels fit a 1999 model?
No. The 2000 GMC Savana 1500 Passenger switched to a 6x139.7 bolt pattern, which is not compatible with the 1999 model's 5x127. Using mismatched patterns is unsafe.
Can I use spacers on my 1999 GMC Savana 1500 Passenger?
Yes, but ensure the wheel spacers match the 5x127 bolt pattern and 78.1mm center bore. Also verify that you have enough thread engagement for your 14x1.5 hardware.
Will wheels from another GMC fit my 1999 Savana 1500 Passenger?
Only if they share the exact same 5x127 bolt pattern, a compatible offset, and a center bore equal to or larger than 78.1mm.
What is the factory wheel offset for a 1999 GMC Savana 1500 Passenger?
The OEM offset for the 1999 Savana 1500 Passenger is typically around 20-30mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
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