1998 Dodge Ram 3500 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 1998 Dodge Ram 3500 Regular 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.
1998 Ram 3500 Regular Cab — Year-Specific Fitment Context
The 1998 Dodge Ram 3500 Regular Cab is in year 5 of 17 using the 8x165.1 pattern (1994–2010). Wheels from any 1994–2010 Dodge Ram 3500 Regular Cab are cross-compatible with the 1998 model.
Dodge Ram 3500 Regular Cab Bolt Pattern by Year
The table below shows how the Ram 3500 Regular Cab's wheel specifications have changed over the years. The 1998 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1994 | 8x165.1 | 121.3 | 43 |
| 1995 | 8x165.1 | 121.3 | 43 |
| 1996 | 8x165.1 | 121.3 | 43 |
| 1997 | 8x165.1 | 121.3 | 43 |
| ▸ 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 |
| 2010 | 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 1998 Dodge Ram 3500 Regular Cab
For your 1998 Dodge Ram 3500 Regular Cab, the 8x165.1 bolt pattern is shared with 1994–2010 models. The 121.3mm center bore is critical: aftermarket wheels often have a larger bore, requiring hub-centric rings to prevent vibration and ensure load is on the hub, not the lugs. Offset is sensitive; stock is 43mm. Sticking close to this range (40-50mm) avoids rubbing or clearance issues with brakes and suspension. Always use the correct 9/16 lug nuts with the proper seat (cone or ball) matching the wheel. Never mix seat types, as improper seating can cause wheel loss. Re-torque after 50-100 miles of driving.
Historical Fitment Data Reference
In our dataset, Dodge Ram 3500 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
- ✅ Always use hub-centric rings if the aftermarket wheel bore exceeds 121.3mm to prevent vibration.
- ✅ Re-torque lug nuts to 135-145 ft-lbs after 50-100 miles of driving.
- ✅ Verify wheel offset is within 40-50mm to avoid brake caliper or suspension contact.
- ⚠️ 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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1998 Dodge Ram 3500 Regular Cab — Frequently Asked Questions
What is the bolt pattern for a 1998 Dodge Ram 3500 Regular Cab?
The 1998 Dodge Ram 3500 Regular 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 Regular Cab have the same bolt pattern as the 1998?
The Dodge Ram 3500 Regular Cab uses the 8x165.1 pattern from 1994 through 2010. Wheels from any of these model years are dimensionally compatible with the 1998, provided the offset and center bore also match.
How tight should I torque the lug nuts on a 1998 Dodge Ram 3500 Regular Cab?
Refer to your owner's manual for exact specs, but always tighten the 9/16 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
Why is matching the 121.3mm center bore important for the 1998 Ram 3500 Regular 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.
Will wheels from another Dodge fit my 1998 Ram 3500 Regular Cab?
Only if they share the exact same 8x165.1 bolt pattern, a compatible offset, and a center bore equal to or larger than 121.3mm.
How do I measure the bolt pattern on my 1998 Dodge?
The 1998 Ram 3500 Regular Cab uses a 8x165.1 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.
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