1999 Dodge Ram 1500 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 1999 Dodge Ram 1500 Quad 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.
1999 Ram 1500 Quad Cab — Year-Specific Fitment Context
The 1999 Dodge Ram 1500 Quad Cab is in year 2 of 13 using the 5x139.7 pattern (1998–2010). Wheels from any 1998–2010 Dodge Ram 1500 Quad Cab are cross-compatible with the 1999 model.
Dodge Ram 1500 Quad Cab Bolt Pattern by Year
The table below shows how the Ram 1500 Quad Cab's wheel specifications have changed over the years. The 1999 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 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 1999 Dodge Ram 1500 Quad Cab
For your 1999 Dodge Ram 1500 Quad Cab, the 5x139.7 bolt pattern is shared across 1998–2010 models, ensuring broad compatibility. However, the 77.8mm center bore is critical: aftermarket wheels often have a larger bore, requiring hub-centric rings to prevent vibrations and ensure proper load transfer. The factory offset is 19mm; deviations beyond ±10mm may cause rubbing or suspension interference. Always verify lug nut seat type: factory uses cone seats (60-degree taper). Using incorrect ball-seat lugs can lead to wheel loosening. Re-torque after 50 miles of driving.
Historical Fitment Data Reference
In our dataset, Dodge Ram 1500 Quad Cab appears from 1998 to 2010 (13 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 77.8mm bore; avoid relying solely on lug nuts for centering.
- ✅ Stick within 10mm of the factory 19mm offset to prevent tire rubbing on suspension or fenders.
- ✅ Re-torque lug nuts to 135 ft-lbs after 50 miles; use a torque wrench to avoid over-tightening or under-tightening.
- ⚠️ 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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1999 Dodge Ram 1500 Quad Cab — Frequently Asked Questions
What is the bolt pattern for a 1999 Dodge Ram 1500 Quad Cab?
The 1999 Dodge Ram 1500 Quad 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 Quad Cab have the same bolt pattern as the 1999?
The Dodge Ram 1500 Quad Cab uses the 5x139.7 pattern from 1998 through 2010. Wheels from any of these model years are dimensionally compatible with the 1999, provided the offset and center bore also match.
Why is matching the 77.8mm center bore important for the 1999 Ram 1500 Quad 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.
Do 1999 Dodge Ram 1500 Quad Cabs use lug bolts or lug nuts?
The 1999 Ram 1500 Quad Cab requires 9/16 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
Can I put aftermarket wheels on my 1999 Dodge Ram 1500 Quad Cab?
Absolutely. Just ensure the aftermarket wheels have a 5x139.7 bolt pattern, an offset near 19mm, and a center bore of at least 77.8mm (using hub rings if larger).
Can I use spacers on my 1999 Dodge Ram 1500 Quad Cab?
Yes, but ensure the wheel spacers match the 5x139.7 bolt pattern and 77.8mm center bore. Also verify that you have enough thread engagement for your 9/16 hardware.
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