1992 Chevrolet 1500 Extended Cab Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 1992 Chevrolet 1500 Extended Cab, 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) | 24-28 |
| Torque Specs | 100 ft-lbs (135 Nm) |
Imperial Match: 6x139.7 is commonly referred to as 6x5.5" in US Standard.
1992 1500 Extended Cab — Year-Specific Fitment Context
The 1992 model year marks the beginning of the Chevrolet 1500 Extended Cab's 6x139.7 bolt pattern era, which continued through 1999 (8 consecutive years). Wheels from any 1992–1999 Chevrolet 1500 Extended Cab are cross-compatible with the 1992 model.
Chevrolet 1500 Extended Cab Bolt Pattern by Year
The table below shows how the 1500 Extended Cab's wheel specifications have changed over the years. The 1992 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 1992 Chevrolet 1500 Extended Cab
For your 1992 Chevrolet 1500 Extended Cab, the 6x139.7 bolt pattern is shared with 1992–1999 models, but the 78.1mm center bore is critical. Aftermarket wheels often have a larger bore (e.g., 108mm), requiring hub-centric rings to prevent vibration and ensure proper load transfer. Offset must stay within 24–28mm; deviations risk rubbing on suspension or fenders. Always use 14x1.5 lug nuts with the correct seat—factory is cone seat (60-degree). Ball seat or incorrect thread pitch can cause wheel loss. Re-torque after 50 miles of driving.
Historical Fitment Data Reference
In our dataset, Chevrolet 1500 Extended Cab appears from 1992 to 1999 (8 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: 52.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 140 ft-lbs after 50 miles, then periodically check.
- ✅ Avoid wheels with offset below 24mm (rubs suspension) or above 28mm (rubs fenders).
- ✅ Verify aftermarket wheels include hub-centric rings for 78.1mm bore; otherwise, vibrations may occur.
- ⚠️ 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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1992 Chevrolet 1500 Extended Cab — Frequently Asked Questions
What is the bolt pattern for a 1992 Chevrolet 1500 Extended Cab?
The 1992 Chevrolet 1500 Extended Cab uses a 6x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 78.1mm and the offset is 24-28mm.
What other years of Chevrolet 1500 Extended Cab have the same bolt pattern as the 1992?
The Chevrolet 1500 Extended Cab uses the 6x139.7 pattern from 1992 through 1999. Wheels from any of these model years are dimensionally compatible with the 1992, provided the offset and center bore also match.
How tight should I torque the lug nuts on a 1992 Chevrolet 1500 Extended Cab?
Refer to your owner's manual for exact specs, but always tighten the 14x1.5 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
Can I use spacers on my 1992 Chevrolet 1500 Extended Cab?
Yes, but ensure the wheel spacers match the 6x139.7 bolt pattern and 78.1mm center bore. Also verify that you have enough thread engagement for your 14x1.5 hardware.
What is the PCD for a 1992 Chevrolet 1500 Extended Cab?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 1992 1500 Extended Cab, the PCD is 6x139.7.
Can I put aftermarket wheels on my 1992 Chevrolet 1500 Extended Cab?
Absolutely. Just ensure the aftermarket wheels have a 6x139.7 bolt pattern, an offset near 24-28mm, and a center bore of at least 78.1mm (using hub rings if larger).
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