1998 GMC 3500 Club Coupe 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 3500 Club Coupe, 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 3500 Club Coupe — Year-Specific Fitment Context
The 1998 model year is the final year of the GMC 3500 Club Coupe's 8x165.1 bolt pattern run (since 1992). Wheels from any 1992–1998 GMC 3500 Club Coupe are cross-compatible with the 1998 model.
GMC 3500 Club Coupe Bolt Pattern by Year
The table below shows how the 3500 Club Coupe'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 3500 Club Coupe
For your 1998 GMC 3500 Club Coupe, the 8x165.1 bolt pattern is shared with 1992-1998 models. The 116.7mm center bore is critical; aftermarket wheels often have a larger bore, requiring hub-centric rings to prevent vibration and ensure proper load distribution. Offset is sensitive: stock is 20mm, but aftermarket wheels should stay within ±10mm to avoid 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 wheel loss. Re-torque after 50-100 miles.
Historical Fitment Data Reference
In our dataset, GMC 3500 Club Coupe appears from 1992 to 1998 (7 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: 0.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 140 ft-lbs after 50-100 miles of driving.
- ✅ Verify wheel bore is 116.7mm or use hub-centric rings; avoid lug-centric mounting.
- ✅ Check for clearance with brake calipers and suspension components when changing offset.
- ⚠️ Torque lugs in a star pattern to 140 ft-lbs (190 Nm), then re-check torque after 50-100 km (30-60 miles).
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1998 GMC 3500 Club Coupe — Frequently Asked Questions
What is the bolt pattern for a 1998 GMC 3500 Club Coupe?
The 1998 GMC 3500 Club Coupe 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 3500 Club Coupe have the same bolt pattern as the 1998?
The GMC 3500 Club Coupe uses the 8x165.1 pattern from 1992 through 1998. Wheels from any of these model years are dimensionally compatible with the 1998, provided the offset and center bore also match.
Why is matching the 116.7mm center bore important for the 1998 3500 Club Coupe?
The 116.7mm 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 is the PCD for a 1998 GMC 3500 Club Coupe?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 1998 3500 Club Coupe, the PCD is 8x165.1.
What is the center bore of a 1998 GMC 3500 Club Coupe?
The factory center bore (hub bore) for the 1998 GMC 3500 Club Coupe is 116.7mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
Can I put aftermarket wheels on my 1998 GMC 3500 Club Coupe?
Absolutely. Just ensure the aftermarket wheels have a 8x165.1 bolt pattern, an offset near 20mm, and a center bore of at least 116.7mm (using hub rings if larger).
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