1998 GMC Suburban 2500 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 Suburban 2500, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 8x165.1 (8x6.5") |
|---|---|
| Lug Nut / Bolt Size | 14x1.5 |
| Center Bore (CB) | 116.7 mm |
| Offset (ET) | 20 |
| Torque Specs | 140 ft-lbs (190 Nm) |
Imperial Match: 8x165.1 is commonly referred to as 8x6.5" in US Standard.
1998 Suburban 2500 — Year-Specific Fitment Context
The 1998 GMC Suburban 2500 is in year 4 of 5 using the 8x165.1 pattern (1995–1999). Wheels from any 1995–1999 GMC Suburban 2500 are cross-compatible with the 1998 model. Across its full production run (1992–1999), the Suburban 2500 has also used: 6x139.7.
GMC Suburban 2500 Bolt Pattern by Year
The table below shows how the Suburban 2500's wheel specifications have changed over the years. The 1998 model year is highlighted.
8x165.1 Pattern Context
This bolt pattern appears on 846 vehicles in our current database and is considered common.
Examples of other vehicles using 8x165.1:
Expert Buying Guide for 1998 GMC Suburban 2500
For the 1998 GMC Suburban 2500, the 8x165.1 bolt pattern is shared with 1995–1999 models, ensuring cross-compatibility. The critical center bore is 116.7mm; aftermarket wheels often have a larger bore, requiring hub-centric rings to prevent vibration and ensure proper load distribution. Offset is sensitive: the factory 20mm offset maintains correct scrub radius and clearance. Using wheels with offset outside 0–30mm may cause rubbing or bearing stress. Always verify lug nut thread pitch (14x1.5) and seat type—factory uses cone seats; aftermarket wheels may require ball seats or shanks. Improper seating can lead to wheel loss. Safety first: never reuse old lug nuts with new wheels.
Historical Fitment Data Reference
In our dataset, GMC Suburban 2500 appears from 1992 to 1999 (8 model years). Across model years, this model appears with 2 bolt patterns (6x139.7, 8x165.1).
- Observed bolt-pattern variants for this model: 2
- Observed center-bore variants for this model: 2
- Observed lug-size variants for this model: 1
- Observed total offset span across years: 60.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50–100 miles to 140 ft-lbs; check again at 500 miles.
- ✅ Avoid wheels with offset below 0mm (too aggressive) to prevent fender rubbing on full lock.
- ✅ Inspect hub bore diameter: if aftermarket bore > 116.7mm, use hub-centric rings; never rely on lug nuts for centering.
- ⚠️ Torque lugs in a star pattern to 140 ft-lbs (190 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.
Ready to upgrade or perform maintenance?
🛒 Shop Tools & Accessories on AmazonAs an Amazon Associate, I earn from qualifying purchases.
1998 GMC Suburban 2500 — Frequently Asked Questions
What is the bolt pattern for a 1998 GMC Suburban 2500?
The 1998 GMC Suburban 2500 uses a 8x165.1 bolt pattern (also called lug pattern or PCD). The center bore is 116.7mm and the offset is 20mm.
What other years of GMC Suburban 2500 have the same bolt pattern as the 1998?
The GMC Suburban 2500 uses the 8x165.1 pattern from 1995 through 1999. Wheels from any of these model years are dimensionally compatible with the 1998, provided the offset and center bore also match.
What is the factory wheel offset for a 1998 GMC Suburban 2500?
The OEM offset for the 1998 Suburban 2500 is typically around 20mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
What is the center bore of a 1998 GMC Suburban 2500?
The factory center bore (hub bore) for the 1998 GMC Suburban 2500 is 116.7mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
What lug nut size does the 1998 GMC Suburban 2500 use?
The 1998 GMC Suburban 2500 uses 14x1.5 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
Can I use spacers on my 1998 GMC Suburban 2500?
Yes, but ensure the wheel spacers match the 8x165.1 bolt pattern and 116.7mm center bore. Also verify that you have enough thread engagement for your 14x1.5 hardware.
Need more vehicle fitment data?
Access our complete, raw JSON/CSV database of over 11,000+ vehicles for your next app or project.
Get the Full Dataset