RT1108Lug - Classic Seven Split Spoke Mesh
17" / 18" / 20" · 3 bolt patterns
From $195.99Check fitment
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Rocktrix · Heavy Duty Series
Heavy Duty8‑Lug Wheels
Heavy loads, long miles, dirt roads. Ready to roll.
Wheels for the heavy duty truck you drive every day and take out on the weekend. Single rear wheel (SRW) trucks only. Not for dually.
The Heavy Duty Series
The lineup
Four designs for Ford, Chevy, GMC and Ram heavy duty trucks. Pick your bolt pattern, size and finish on the product page.
RT1118Lug - Teardrop Multispoke
17" / 18" / 20" · 3 bolt patterns
From $190.49Check fitment
Choose options
No designs match those filters.
Fit guide
Find your fit
Match your bolt pattern and bore to your truck first. Then pick size and offset.
Bolt pattern | bore
Size | offset
4 designs fit 8x165.1 | 125.2.
Vehicles
- Chevrolet
- Silverado 2500 and 2500 HD
- Silverado 3500 and 3500 HD (SRW only)
- Suburban 2500
- GMC
- Sierra 2500 and 2500 HD
- Sierra 3500 and 3500 HD (SRW only)
- Yukon XL 2500
- Dodge
- Ram 25001994-2010
- Dodge Ram 3500 1994-2010 (SRW only)
- Ram 25002011+
- Ram 3500 2011+ (SRW only)
Design
Size | offset
Finish
17x8.5 ET018x9 ET-1218x9 ET+1220x9 ET-1220x9 ET+12
Matte Black, Machined Silver
Size | offset
4 designs fit 8x170 | 125.2.
Vehicles
- Ford
- F-250 Super Duty1999+
- F-350 Super Duty 1999+ (SRW only)
- Excursion2000-2005
Design
Size | offset
Finish
17x8.5 ET018x9 ET-1218x9 ET+1220x9 ET-1220x9 ET+12
Matte Black, Machined Silver
Size | offset
4 designs fit 8x180 | 124.1.
Vehicles
- Chevrolet
- Silverado 2500 HD2011+
- Silverado 3500 HD 2011+ (SRW only)
- GMC
- Sierra 2500 HD2011+
- Sierra 3500 HD 2011+ (SRW only)
Design
Size | offset
Finish
17x8.5 ET018x9 ET-1218x9 ET+1220x9 ET-1220x9 ET+12
Matte Black, Machined Silver
Single rear wheel (SRW) trucks only. Not for dually.
A dually (DRW) has two rear wheels on each side. If your truck is a 3500, check which rear wheel setup you have before you order.
Lug nuts: not included. Cone seat only, and the nuts and your socket must not be wider than 1.25". Thread size depends on your truck and year.
Heavy Duty Series
HD Accessories
Heavy Duty · Every day and days off
Every day, and days off.
Daily driving to backroads, in 17, 18 and 20 inch.
Three 8‑lug patterns.
8x165.1, 8x170 and 8x180 for Ford, Chevy, GMC, and Ram heavy-duty trucks.
Fitment Info for Every Wheel.
Every product page includes guides for fitment, tire size, and lug nut compatibility.
Four designs, 17 to 20 inch.
Matte Black on every design, plus Matte Gunmetal or Machined Silver.
Fit checked before it ships.
We verify fitment on every order. If something looks off, we reach out before we process it.
FAQ
Questions
Are these wheels for dually trucks?
No. These 8-lug wheels are for single rear wheel (SRW) trucks only, not for dually (DRW). A dually has two rear wheels on each side. If your truck is a 3500, check which rear wheel setup you have before you order.
Which bolt pattern do I need?
These wheels come in three 8-lug patterns. In general:
- 8x165.1: older Chevy and GMC heavy duty trucks, and Dodge and Ram 2500 and 3500
- 8x170: Ford Super Duty
- 8x180: 2011+ Chevy and GMC 2500 HD and 3500 HD
Find your truck and year in the fitment guide. Match the pattern exactly before you choose size or finish.
How do I choose size and offset?
Sizes are 17x8.5, 18x9 and 20x9. Offset (ET) is in millimeters and backspacing is in inches.
- 17x8.5: ET 0 is 4.75" of backspacing
- 18x9 and 20x9 (9 inch wheels): ET-12 is 4.5" of backspacing, ET+12 is 5.5" (RT112 and RT114)
Your tire guide shows common tire sizes for each wheel. Final fitment can be affected by the tire make and model and your alignment, so we recommend a qualified shop for mounting, and check lift or leveling kit requirements with the kit maker.
Not sure? Contact support before you order.
Do the wheels come with lug nuts? What thread size do I need?
Lug nuts are not included. Thread size depends on your truck and year. Examples from our Lug Nut Compatibility chart:
- 2011+ Chevrolet and GMC Silverado and Sierra 2500 HD and 3500 HD: M14x1.5 (XL/Extended)
- 2003+ Ford F-250 Super Duty: M14x1.5 (XL/Extended)
- 2013+ Ram 2500: M14x1.5
Older trucks use other sizes, so check your exact year and truck on the chart. Lug nuts must be cone seat, and the nuts and your socket must not be wider than 1.25". We sell M14x1.5 and 9/16"x18 cone seat lug nuts in packs of 32.
Do I need hubrings?
Hub rings are recommended for a centered fit. Follow the hubring and lug guidance on your wheel's fitment page.
What about shipping and returns?
Free shipping to the lower 48 states. Most orders ship within 1 to 2 business days.
- You can return unused wheels within 30 days of receipt, in new condition.
- Wheels with tires previously mounted are not eligible.
- Return shipping is on the customer.
Heavy Duty Series
Find your pattern. Wheel your adventure.
Not sure what fits? Talk to a wheel expert before you order.
Not sure what fits?
Talk to a wheel expert before you order.
Free shippingTo the lower 48
0% financing6 months with Affirm
US-based support teamTalk to a wheel expert
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