1994 GMC 2500 Regular Cab Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 1994 GMC 2500 Regular Cab, 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.
1994 2500 Regular Cab — Year-Specific Fitment Context
The 1994 GMC 2500 Regular Cab is in year 3 of 7 using the 8x165.1 pattern (1992–1998). Wheels from any 1992–1998 GMC 2500 Regular Cab are cross-compatible with the 1994 model.
GMC 2500 Regular Cab Bolt Pattern by Year
The table below shows how the 2500 Regular Cab's wheel specifications have changed over the years. The 1994 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 1994 GMC 2500 Regular Cab
For your 1994 GMC 2500 Regular Cab, the 8x165.1 bolt pattern is shared across 1992–1998 models, ensuring cross-compatibility. 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 transfer. Offset is sensitive; stick to a 20mm range (0–40mm) to avoid rubbing or clearance issues. Always use lug nuts with the correct 14x1.5 thread pitch and matching seat type (cone or ball) to prevent loosening. Never reuse old lug nuts; torque to manufacturer specs (typically 140 ft-lbs) and re-torque after 50 miles.
Historical Fitment Data Reference
In our dataset, GMC 2500 Regular Cab 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 after 50 miles of driving to ensure proper seating.
- ✅ Verify wheel bore diameter; use hub-centric rings if aftermarket bore exceeds 116.7mm.
- ✅ Check offset carefully; deviations beyond ±20mm may cause brake caliper or suspension interference.
- ⚠️ 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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1994 GMC 2500 Regular Cab — Frequently Asked Questions
What is the bolt pattern for a 1994 GMC 2500 Regular Cab?
The 1994 GMC 2500 Regular Cab 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 2500 Regular Cab have the same bolt pattern as the 1994?
The GMC 2500 Regular Cab uses the 8x165.1 pattern from 1992 through 1998. Wheels from any of these model years are dimensionally compatible with the 1994, provided the offset and center bore also match.
Can I put aftermarket wheels on my 1994 GMC 2500 Regular Cab?
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).
What is the factory wheel offset for a 1994 GMC 2500 Regular Cab?
The OEM offset for the 1994 2500 Regular Cab is typically around 20mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
What is the PCD for a 1994 GMC 2500 Regular Cab?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 1994 2500 Regular Cab, the PCD is 8x165.1.
What does 20mm offset mean for the 1994 2500 Regular Cab?
An offset of 20mm means the wheel's mounting surface is 20mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your GMC.
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