1998 GMC Savana 1500 Cargo Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 1998 GMC Savana 1500 Cargo, along with offset and center bore data.
1998 GMC Savana 1500 Cargo 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.
1998 Savana 1500 Cargo — Year-Specific Fitment Context
The 1998 model year is the final year of the GMC Savana 1500 Cargo's 5x127 bolt pattern run (since 1996). Wheels from any 1996–1998 GMC Savana 1500 Cargo are cross-compatible with the 1998 model. Important: starting in 1999, GMC switched to 6x139.7 — those wheels will not fit the 1998 model. Across its full production run (1996–2014), the Savana 1500 Cargo has also used: 6x139.7.
GMC Savana 1500 Cargo Bolt Pattern by Year
The table below shows how the Savana 1500 Cargo's wheel specifications have changed over the years. The 1998 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 | 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 |
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 1998 GMC Savana 1500 Cargo
For your 1998 GMC Savana 1500 Cargo, the 6x139.7 bolt pattern is shared across 1996–2014 models, ensuring cross-compatibility. Critical: the center bore is 78.1mm; aftermarket wheels with larger bores require hub-centric rings to prevent vibration and lug nut stress. Offset must stay within 20-30mm; deviations risk rubbing or poor handling. Always use 14x1.5 lug nuts with the correct seat—cone or ball seat—matching the wheel. Improper seating can cause loosening. Re-torque after 50-100 miles. Avoid wheels designed for smaller center bores or different offsets.
Historical Fitment Data Reference
In our dataset, GMC Savana 1500 Cargo 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
- ✅ Always use hub-centric rings if aftermarket wheels have a bore larger than 78.1mm to center the wheel properly.
- ✅ Stick to offset 20-30mm; lower offset may rub suspension, higher offset may cause inner clearance issues.
- ✅ Re-torque lug nuts to spec (typically 140 ft-lbs) after 50-100 miles to ensure proper seating.
- ⚠️ 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.
1998 GMC Savana 1500 Cargo — Frequently Asked Questions
What is the bolt pattern for a 1998 GMC Savana 1500 Cargo?
The 1998 GMC Savana 1500 Cargo 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 Cargo have the same bolt pattern as the 1998?
The GMC Savana 1500 Cargo uses the 5x127 pattern from 1996 through 1998. Wheels from any of these model years are dimensionally compatible with the 1998, provided the offset and center bore also match.
Will 1999 GMC Savana 1500 Cargo wheels fit a 1998 model?
No. The 1999 GMC Savana 1500 Cargo switched to a 6x139.7 bolt pattern, which is not compatible with the 1998 model's 5x127. Using mismatched patterns is unsafe.
What does 20-30mm offset mean for the 1998 Savana 1500 Cargo?
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 1998 Savana 1500 Cargo?
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 lug nut size does the 1998 GMC Savana 1500 Cargo use?
The 1998 GMC Savana 1500 Cargo uses 14x1.5 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
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