2008 Dodge Ram 3500 Quad 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 3500 Quad Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 8x165.1 (8x6.5") |
|---|---|
| Lug Nut / Bolt Size | 9/16 |
| Center Bore (CB) | 121.3 mm |
| Offset (ET) | 43 |
| Torque Specs | 140 ft-lbs (190 Nm) |
Imperial Match: 8x165.1 is commonly referred to as 8x6.5" in US Standard.
2008 Ram 3500 Quad Cab — Year-Specific Fitment Context
The 2008 Dodge Ram 3500 Quad Cab is in year 11 of 12 using the 8x165.1 pattern (1998–2009). Wheels from any 1998–2009 Dodge Ram 3500 Quad Cab are cross-compatible with the 2008 model.
Dodge Ram 3500 Quad Cab Bolt Pattern by Year
The table below shows how the Ram 3500 Quad Cab's wheel specifications have changed over the years. The 2008 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1998 | 8x165.1 | 121.3 | 43 |
| 1999 | 8x165.1 | 121.3 | 43 |
| 2000 | 8x165.1 | 121.3 | 43 |
| 2001 | 8x165.1 | 121.3 | 43 |
| 2002 | 8x165.1 | 121.3 | 43 |
| 2003 | 8x165.1 | 121.3 | 43 |
| 2004 | 8x165.1 | 121.3 | 43 |
| 2005 | 8x165.1 | 121.3 | 43 |
| 2006 | 8x165.1 | 121.3 | 43 |
| 2007 | 8x165.1 | 121.3 | 43 |
| ▸ 2008 | 8x165.1 | 121.3 | 43 |
| 2009 | 8x165.1 | 121.3 | 43 |
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 2008 Dodge Ram 3500 Quad Cab
For the 2008 Dodge Ram 3500 Quad Cab, the 8x165.1 bolt pattern is shared with 1998-2009 models, ensuring cross-compatibility. The 121.3mm center bore requires hub-centric rings for aftermarket wheels to prevent vibration and load stress. Offset is critical: stock is 43mm; deviations affect suspension geometry and tire clearance. Always use 9/16" lug nuts with correct thread pitch (likely 9/16-18) and proper seat type—cone seat for aftermarket wheels, ball seat for OEM. Never mix seat types. Re-torque after 50-100 miles. Verify wheel load rating exceeds vehicle GVWR.
Historical Fitment Data Reference
In our dataset, Dodge Ram 3500 Quad Cab appears from 1998 to 2009 (12 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
- ✅ Use hub-centric rings with aftermarket wheels to match the 121.3mm bore; avoid lug-centric mounting.
- ✅ Stick to offset within ±6mm of 43mm to prevent rubbing or bearing wear.
- ✅ Re-torque lug nuts to 140 ft-lbs after 50 miles; check for proper cone/ball seat compatibility.
- ⚠️ 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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2008 Dodge Ram 3500 Quad Cab — Frequently Asked Questions
What is the bolt pattern for a 2008 Dodge Ram 3500 Quad Cab?
The 2008 Dodge Ram 3500 Quad Cab uses a 8x165.1 bolt pattern (also called lug pattern or PCD). The center bore is 121.3mm and the offset is 43mm.
What other years of Dodge Ram 3500 Quad Cab have the same bolt pattern as the 2008?
The Dodge Ram 3500 Quad Cab uses the 8x165.1 pattern from 1998 through 2009. 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 121.3mm center bore important for the 2008 Ram 3500 Quad Cab?
The 121.3mm 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.
Can I use spacers on my 2008 Dodge Ram 3500 Quad Cab?
Yes, but ensure the wheel spacers match the 8x165.1 bolt pattern and 121.3mm center bore. Also verify that you have enough thread engagement for your 9/16 hardware.
Can I put aftermarket wheels on my 2008 Dodge Ram 3500 Quad Cab?
Absolutely. Just ensure the aftermarket wheels have a 8x165.1 bolt pattern, an offset near 43mm, and a center bore of at least 121.3mm (using hub rings if larger).
What is the center bore of a 2008 Dodge Ram 3500 Quad Cab?
The factory center bore (hub bore) for the 2008 Dodge Ram 3500 Quad Cab is 121.3mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
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