1993 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 1993 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.
1993 1500 Extended Cab — Year-Specific Fitment Context
The 1993 Chevrolet 1500 Extended Cab is in year 2 of 8 using the 6x139.7 pattern (1992–1999). Wheels from any 1992–1999 Chevrolet 1500 Extended Cab are cross-compatible with the 1993 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 1993 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 1993 Chevrolet 1500 Extended Cab
For your 1993 Chevrolet 1500 Extended Cab, the 6x139.7 bolt pattern is shared across 1992–1999 models, ensuring cross-compatibility. However, 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 (cone seat for most aftermarket wheels, ball seat for factory). Improper seating can cause wheel loosening. Re-torque after 50–100 miles.
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-lb after 50–100 miles of driving.
- ✅ Avoid wheels with offset below 24mm; they may contact the brake calipers or control arms.
- ✅ Inspect wheel bore diameter; if larger than 78.1mm, install hub-centric rings to prevent vibration.
- ⚠️ 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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1993 Chevrolet 1500 Extended Cab — Frequently Asked Questions
What is the bolt pattern for a 1993 Chevrolet 1500 Extended Cab?
The 1993 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 1993?
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 1993, provided the offset and center bore also match.
What is the factory wheel offset for a 1993 Chevrolet 1500 Extended Cab?
The OEM offset for the 1993 1500 Extended Cab is typically around 24-28mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
How tight should I torque the lug nuts on a 1993 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.
How do I measure the bolt pattern on my 1993 Chevrolet?
The 1993 1500 Extended Cab 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.
What lug nut size does the 1993 Chevrolet 1500 Extended Cab use?
The 1993 Chevrolet 1500 Extended Cab uses 14x1.5 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
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