1994 GMC Vandura 1500 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 Vandura 1500, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 6x139.7 (6x5.5") |
|---|---|
| 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: 6x139.7 is commonly referred to as 6x5.5" in US Standard.
1994 Vandura 1500 — Year-Specific Fitment Context
The 1994 model year is the final year of the GMC Vandura 1500's 6x139.7 bolt pattern run (since 1992). Wheels from any 1992–1994 GMC Vandura 1500 are cross-compatible with the 1994 model.
GMC Vandura 1500 Bolt Pattern by Year
The table below shows how the Vandura 1500's wheel specifications have changed over the years. The 1994 model year is highlighted.
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 1994 GMC Vandura 1500
For your 1994 GMC Vandura 1500, the 6x139.7 bolt pattern and 78.1mm center bore are critical. Aftermarket wheels often have a larger bore; use hub-centric rings to prevent vibration and ensure load is on the hub, not the lugs. 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) matching the wheel. Improper thread pitch or seat can cause wheel loss. Verify all specs before purchase.
Historical Fitment Data Reference
In our dataset, GMC Vandura 1500 appears from 1992 to 1994 (3 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: 50.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to maintain clamping force.
- ✅ Avoid wheels with offset outside 20-30mm; even 5mm difference can cause clearance issues.
- ✅ Check that aftermarket wheels include hub-centric rings for 78.1mm bore; many universal wheels require them.
- ⚠️ 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).
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1994 GMC Vandura 1500 — Frequently Asked Questions
What is the bolt pattern for a 1994 GMC Vandura 1500?
The 1994 GMC Vandura 1500 uses a 6x139.7 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 Vandura 1500 have the same bolt pattern as the 1994?
The GMC Vandura 1500 uses the 6x139.7 pattern from 1992 through 1994. 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 Vandura 1500?
Absolutely. Just ensure the aftermarket wheels have a 6x139.7 bolt pattern, an offset near 20-30mm, and a center bore of at least 78.1mm (using hub rings if larger).
Do 1994 GMC Vandura 1500s use lug bolts or lug nuts?
The 1994 Vandura 1500 requires 14x1.5 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
What is the factory wheel offset for a 1994 GMC Vandura 1500?
The OEM offset for the 1994 Vandura 1500 is typically around 20-30mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
How do I measure the bolt pattern on my 1994 GMC?
The 1994 Vandura 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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