1993 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 1993 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) |
1993 Trans Sport — Year-Specific Fitment Context
The 1993 Pontiac Trans Sport is in year 2 of 7 using the 5x115 pattern (1992–1998). Wheels from any 1992–1998 Pontiac Trans Sport are cross-compatible with the 1993 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 1993 model year is highlighted.
Fitment Notes
The 1993 Pontiac Trans Sport has a bolt pattern of 5x115.
This means it is a 5 lug pattern with a circle diameter of 115mm. When shopping for aftermarket wheels, ensure the "lug pattern" or "PCD" matches these numbers.
Year-to-Year Fitment Context
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
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:
1993 Pontiac Trans Sport — Frequently Asked Questions
What is the bolt pattern for a 1993 Pontiac Trans Sport?
The 1993 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 1993?
The Pontiac Trans Sport uses the 5x115 pattern from 1992 through 1998. Wheels from any of these model years are dimensionally compatible with the 1993, provided the offset and center bore also match.
How do I measure the bolt pattern on my 1993 Pontiac?
The 1993 Trans Sport uses a 5x115 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 does 40mm offset mean for the 1993 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.
Can I put aftermarket wheels on my 1993 Pontiac Trans Sport?
Absolutely. Just ensure the aftermarket wheels have a 5x115 bolt pattern, an offset near 40mm, and a center bore of at least 70.3mm (using hub rings if larger).
What is the center bore of a 1993 Pontiac Trans Sport?
The factory center bore (hub bore) for the 1993 Pontiac Trans Sport is 70.3mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
Fitment Checklist Before You Buy 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).
Editorial Fitment Notes
Pontiac Trans Sport is generally consistent in bolt-pattern records across model years, but offset and hardware should still be validated before purchase.
- Observed production years in our database: 1992-1998 (7 model years).
- Observed bolt-pattern variants: 1 (5x115).
- Observed total offset span across years: 5.0 mm.
- Observed center-bore variants: 1 | lug-size variants: 1.
Data Quality & Review
Source note: Compiled from manufacturer fitment references, historical wheel data, and internal normalization rules.
Last reviewed: 2026-05-26 | Reviewed by: Bolt Pattern HQ Editorial Team
If you find a discrepancy for 1993 Pontiac Trans Sport, please report it via our About page contact so we can verify and update this record.