1994 Pontiac Trans Sport Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 1994 Pontiac Trans Sport, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x115 |
|---|---|
| Lug Nut / Bolt Size | N 12x1.50 |
| Center Bore (CB) | 70.3 mm |
| Offset (ET) | 40 |
| Torque Specs | 80 ft-lbs (108 Nm) |
1994 Trans Sport — Year-Specific Fitment Context
The 1994 Pontiac Trans Sport is in year 3 of 7 using the 5x115 pattern (1992–1998). Wheels from any 1992–1998 Pontiac Trans Sport are cross-compatible with the 1994 model.
Pontiac Trans Sport Bolt Pattern by Year
The table below shows how the Trans Sport's wheel specifications have changed over the years. The 1994 model year is highlighted.
5x115 Pattern Context
This bolt pattern appears on 498 vehicles in our current database and is considered moderately common.
Examples of other vehicles using 5x115:
Expert Buying Guide for 1994 Pontiac Trans Sport
The 1994 Pontiac Trans Sport uses a 5x115 bolt pattern with a 70.3mm center bore. Aftermarket wheels often have a larger bore, so hub-centric rings (70.3mm ID to wheel hub OD) are mandatory to prevent vibrations and ensure proper load transfer. The factory offset is 40mm; deviations beyond ±5mm may cause rubbing or clearance issues with suspension and fenders. Always use lug nuts with the correct thread pitch (12x1.5) and seat type—factory wheels use a conical (60-degree) seat, while aftermarket wheels may require ball-seat or shank-style nuts. Improper lug nut selection can lead to wheel loosening. Verify lug nut engagement: at least 6-8 full turns are needed for safe clamping force.
Historical Fitment Data Reference
In our dataset, Pontiac Trans Sport 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: 5.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to account for wheel settling and gasket compression.
- ✅ When installing aftermarket wheels, always use hub-centric rings specific to 70.3mm bore to avoid vibration and stress on studs.
- ✅ Check for caliper clearance with aftermarket wheels; the Trans Sport's front calipers can interfere with certain spoke designs or low-offset wheels.
- ⚠️ Verify thread pitch before installation; M12x1.25 and M12x1.5 are not interchangeable.
- ⚠️ Torque lugs in a star pattern to 80 ft-lbs (108 Nm), then re-check torque after 50-100 km (30-60 miles).
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1994 Pontiac Trans Sport — Frequently Asked Questions
What is the bolt pattern for a 1994 Pontiac Trans Sport?
The 1994 Pontiac Trans Sport uses a 5x115 bolt pattern (also called lug pattern or PCD). The center bore is 70.3mm and the offset is 40mm.
What other years of Pontiac Trans Sport have the same bolt pattern as the 1994?
The Pontiac Trans Sport uses the 5x115 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.
Do 1994 Pontiac Trans Sports use lug bolts or lug nuts?
The 1994 Trans Sport requires N 12x1.50 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
Will wheels from another Pontiac fit my 1994 Trans Sport?
Only if they share the exact same 5x115 bolt pattern, a compatible offset, and a center bore equal to or larger than 70.3mm.
Can I use spacers on my 1994 Pontiac Trans Sport?
Yes, but ensure the wheel spacers match the 5x115 bolt pattern and 70.3mm center bore. Also verify that you have enough thread engagement for your N 12x1.50 hardware.
What does 40mm offset mean for the 1994 Trans Sport?
An offset of 40mm means the wheel's mounting surface is 40mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your Pontiac.
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