1994 Chevrolet 3500 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 1994 Chevrolet 3500 Extended 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 3500 Extended Cab — Year-Specific Fitment Context
The 1994 Chevrolet 3500 Extended Cab is in year 3 of 9 using the 8x165.1 pattern (1992–2000). Wheels from any 1992–2000 Chevrolet 3500 Extended Cab are cross-compatible with the 1994 model.
Chevrolet 3500 Extended Cab Bolt Pattern by Year
The table below shows how the 3500 Extended 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 Chevrolet 3500 Extended Cab
For the 1994 Chevrolet 3500 Extended Cab, the critical center bore is 116.7mm. 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 is sensitive: the factory spec is 20mm. Sticking close to this range maintains proper scrub radius and prevents tire rubbing on suspension or body. Safety warning: this vehicle uses 14x1.5 lug nuts with a conical (60-degree) seat. Never use ball-seat or flat-seat nuts; they can loosen or damage the wheel. Always torque to 140 ft-lbs in a star pattern.
Historical Fitment Data Reference
In our dataset, Chevrolet 3500 Extended Cab appears from 1992 to 2000 (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: 60.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to account for wheel settling.
- ✅ When using aftermarket wheels, verify that the wheel's hub bore is at least 116.7mm; if larger, install hub-centric rings.
- ✅ Avoid wheels with offset below 10mm or above 30mm to prevent clearance issues with brake calipers and suspension components.
- ⚠️ 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 Chevrolet 3500 Extended Cab — Frequently Asked Questions
What is the bolt pattern for a 1994 Chevrolet 3500 Extended Cab?
The 1994 Chevrolet 3500 Extended 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 Chevrolet 3500 Extended Cab have the same bolt pattern as the 1994?
The Chevrolet 3500 Extended Cab uses the 8x165.1 pattern from 1992 through 2000. Wheels from any of these model years are dimensionally compatible with the 1994, provided the offset and center bore also match.
What is the PCD for a 1994 Chevrolet 3500 Extended Cab?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 1994 3500 Extended Cab, the PCD is 8x165.1.
What lug nut size does the 1994 Chevrolet 3500 Extended Cab use?
The 1994 Chevrolet 3500 Extended Cab uses 14x1.5 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
What does 20mm offset mean for the 1994 3500 Extended 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 Chevrolet.
How tight should I torque the lug nuts on a 1994 Chevrolet 3500 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.
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