2008 Dodge Ram 1500 Regular Cab Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2008 Dodge Ram 1500 Regular Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x139.7 (5x5.5") |
|---|---|
| Lug Nut / Bolt Size | 9/16 |
| Center Bore (CB) | 77.8 mm |
| Offset (ET) | 19 |
| Torque Specs | 140 ft-lbs (190 Nm) |
Imperial Match: 5x139.7 is commonly referred to as 5x5.5" in US Standard.
2008 Ram 1500 Regular Cab — Year-Specific Fitment Context
The 2008 Dodge Ram 1500 Regular Cab is in year 15 of 17 using the 5x139.7 pattern (1994–2010). Wheels from any 1994–2010 Dodge Ram 1500 Regular Cab are cross-compatible with the 2008 model.
Dodge Ram 1500 Regular Cab Bolt Pattern by Year
The table below shows how the Ram 1500 Regular Cab's wheel specifications have changed over the years. The 2008 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1994 | 5x139.7 | 77.8 | 19 |
| 1995 | 5x139.7 | 77.8 | 19 |
| 1996 | 5x139.7 | 77.8 | 19 |
| 1997 | 5x139.7 | 77.8 | 19 |
| 1998 | 5x139.7 | 77.8 | 19 |
| 1999 | 5x139.7 | 77.8 | 19 |
| 2000 | 5x139.7 | 77.8 | 19 |
| 2001 | 5x139.7 | 77.8 | 19 |
| 2002 | 5x139.7 | 77.8 | 19 |
| 2003 | 5x139.7 | 77.8 | 19 |
| 2004 | 5x139.7 | 77.8 | 19 |
| 2005 | 5x139.7 | 77.8 | 19 |
| 2006 | 5x139.7 | 77.8 | 19 |
| 2007 | 5x139.7 | 77.8 | 19 |
| ▸ 2008 | 5x139.7 | 77.8 | 19 |
| 2009 | 5x139.7 | 77.8 | 19 |
| 2010 | 5x139.7 | 77.8 | 19 |
5x139.7 Pattern Context
This bolt pattern appears on 261 vehicles in our current database and is considered moderately common.
Examples of other vehicles using 5x139.7:
Expert Buying Guide for 2008 Dodge Ram 1500 Regular Cab
For your 2008 Dodge Ram 1500 Regular Cab, the 5x139.7 bolt pattern is shared with 1994–2010 models, ensuring cross-compatibility. However, the 77.8mm center bore is critical: aftermarket wheels often have a larger bore (e.g., 78.1mm or 83mm), requiring hub-centric rings to prevent vibration and ensure proper load transfer. The 19mm offset is sensitive; deviations beyond ±5mm may cause rubbing or clearance issues. Always verify lug nut thread pitch (9/16-18) and seat type—factory wheels use a cone seat. Using incorrect seat types (e.g., ball seat) can lead to wheel loosening. Safety first: improper fitment compromises handling and braking.
Historical Fitment Data Reference
In our dataset, Dodge Ram 1500 Regular Cab appears from 1994 to 2010 (17 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: 0.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 135 ft-lbs after 50 miles of driving to account for settling.
- ✅ Avoid using universal fit wheels without hub-centric rings; the 77.8mm bore is smaller than many aftermarket wheels.
- ✅ Check for brake caliper clearance when using wheels with offset less than 14mm or greater than 24mm.
- ⚠️ Torque lugs in a star pattern to 140 ft-lbs (190 Nm), then re-check torque after 50-100 km (30-60 miles).
Ready to upgrade or perform maintenance?
🛒 Shop Tools & Accessories on AmazonAs an Amazon Associate, I earn from qualifying purchases.
2008 Dodge Ram 1500 Regular Cab — Frequently Asked Questions
What is the bolt pattern for a 2008 Dodge Ram 1500 Regular Cab?
The 2008 Dodge Ram 1500 Regular Cab uses a 5x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 77.8mm and the offset is 19mm.
What other years of Dodge Ram 1500 Regular Cab have the same bolt pattern as the 2008?
The Dodge Ram 1500 Regular Cab uses the 5x139.7 pattern from 1994 through 2010. Wheels from any of these model years are dimensionally compatible with the 2008, provided the offset and center bore also match.
Why is matching the 77.8mm center bore important for the 2008 Ram 1500 Regular Cab?
The 77.8mm center bore ensures the wheel is perfectly centered on the hub. If the wheel is lug-centric instead of hub-centric, you may experience steering wheel vibration at highway speeds.
What is the center bore of a 2008 Dodge Ram 1500 Regular Cab?
The factory center bore (hub bore) for the 2008 Dodge Ram 1500 Regular Cab is 77.8mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
What is the factory wheel offset for a 2008 Dodge Ram 1500 Regular Cab?
The OEM offset for the 2008 Ram 1500 Regular Cab is typically around 19mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
What does 19mm offset mean for the 2008 Ram 1500 Regular Cab?
An offset of 19mm means the wheel's mounting surface is 19mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your Dodge.
Need more vehicle fitment data?
Access our complete, raw JSON/CSV database of over 11,000+ vehicles for your next app or project.
Get the Full Dataset