1998 Chevrolet Suburban 1500 Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 1998 Chevrolet Suburban 1500, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 6x139.7 (6x5.5") |
|---|---|
| Lug Nut / Bolt Size | N 14x1.50 |
| Center Bore (CB) | 78.1 mm |
| Offset (ET) | 21 |
| Torque Specs | 100 ft-lbs (135 Nm) |
Imperial Match: 6x139.7 is commonly referred to as 6x5.5" in US Standard.
1998 Suburban 1500 — Year-Specific Fitment Context
The 1998 Chevrolet Suburban 1500 is in year 7 of 23 using the 6x139.7 pattern (1992–2014). Wheels from any 1992–2014 Chevrolet Suburban 1500 are cross-compatible with the 1998 model.
Chevrolet Suburban 1500 Bolt Pattern by Year
The table below shows how the Suburban 1500's wheel specifications have changed over the years. The 1998 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1992 | 6x139.7 | 78.1 | 21 |
| 1993 | 6x139.7 | 78.1 | 21 |
| 1994 | 6x139.7 | 78.1 | 21 |
| 1995 | 6x139.7 | 78.1 | 21 |
| 1996 | 6x139.7 | 78.1 | 21 |
| 1997 | 6x139.7 | 78.1 | 21 |
| ▸ 1998 | 6x139.7 | 78.1 | 21 |
| 1999 | 6x139.7 | 78.1 | 21 |
| 2000 | 6x139.7 | 78.1 | 21 |
| 2001 | 6x139.7 | 78.1 | 21 |
| 2002 | 6x139.7 | 78.1 | 21 |
| 2003 | 6x139.7 | 78.1 | 21 |
| 2004 | 6x139.7 | 78.1 | 21 |
| 2005 | 6x139.7 | 78.1 | 21 |
| 2006 | 6x139.7 | 78.1 | 21 |
| 2007 | 6x139.7 | 78.1 | 21 |
| 2008 | 6x139.7 | 78.1 | 22 |
| 2009 | 6x139.7 | 78.1 | 22 |
| 2010 | 6x139.7 | 78.1 | 22 |
| 2011 | 6x139.7 | 78.1 | 22 |
| 2012 | 6x139.7 | 78.1 | 22 |
| 2013 | 6x139.7 | 78.1 | 22 |
| 2014 | 6x139.7 | 78.1 | 22 |
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 1998 Chevrolet Suburban 1500
When selecting wheels for your 1998 Chevrolet Suburban 1500, the 6x139.7 bolt pattern is shared across 1992–2014 models, ensuring broad 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 transfer. Offset is sensitive; the factory 21mm offset maintains correct suspension geometry and tire clearance. Deviating significantly may cause rubbing or bearing stress. Always verify lug nut thread pitch (14x1.50) and seat type (cone or ball). Using incorrect lug nuts can lead to wheel loosening. Safety first: confirm all specs before purchase.
Historical Fitment Data Reference
In our dataset, Chevrolet Suburban 1500 appears from 1992 to 2014 (23 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: 1.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to ensure proper seating.
- ✅ Avoid wheels with offset below 10mm or above 30mm to prevent rubbing or clearance issues.
- ✅ Check that aftermarket wheels include hub-centric rings for the 78.1mm bore; otherwise, vibrations may occur.
- ⚠️ 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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1998 Chevrolet Suburban 1500 — Frequently Asked Questions
What is the bolt pattern for a 1998 Chevrolet Suburban 1500?
The 1998 Chevrolet Suburban 1500 uses a 6x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 78.1mm and the offset is 21mm.
What other years of Chevrolet Suburban 1500 have the same bolt pattern as the 1998?
The Chevrolet Suburban 1500 uses the 6x139.7 pattern from 1992 through 2014. Wheels from any of these model years are dimensionally compatible with the 1998, provided the offset and center bore also match.
Do 1998 Chevrolet Suburban 1500s use lug bolts or lug nuts?
The 1998 Suburban 1500 requires N 14x1.50 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
Why is matching the 78.1mm center bore important for the 1998 Suburban 1500?
The 78.1mm center bore ensures the wheel is perfectly centered on the hub. If the wheel is lug-centric instead of hub-centric, you may experience steering wheel vibration at highway speeds.
What lug nut size does the 1998 Chevrolet Suburban 1500 use?
The 1998 Chevrolet Suburban 1500 uses N 14x1.50 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
How do I measure the bolt pattern on my 1998 Chevrolet?
The 1998 Suburban 1500 uses a 6x139.7 pattern. For 4, 6, or 8-lug wheels, measure center-to-center across opposite holes. For 5-lug, measure from the center of one hole to the back of the opposite hole.
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