8 x 180mm to 8 x 180mm (Chevy/GMC)
8 x 180mm to 8 x 180mm (Chevy/GMC) - 1.5" is backordered and will ship as soon as it is back in stock.
Confirm vehicle fitment
Confirm vehicle fitment
Confirm fitment before ordering. Match the year, make, model, trim, engine, drivetrain and selected options shown on this page. If any detail is unclear, search your exact vehicle or contact us before checkout.
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What’s included
What’s included
The product description and selected variant determine what is included. Items shown in lifestyle or installation photos are not included unless they are specifically listed in the description.
8 x 180mm to 8 x 180mm (Chevy/GMC)
8 x 180mm to 8 x 180mm (Chevy/GMC) - 1.5" is backordered and will ship as soon as it is back in stock.
Buy with confidence
Verify fitment, selected options, availability and included components before checkout. Secure payment options and order confirmation are provided at checkout.
Description
Description
Far From Stock — Hub & Wheel-Centric Billet Adapter (8×180 → 8×180, 14×1.5 Studs, 125.6 mm Bore)
Must order two for a pair. Pricing is for one wheel adapter only.
Hub- and wheel-centric billet adapter for GM HD trucks using the 8×180 mm bolt pattern, M14×1.5 studs, and a 125.6 mm center bore. Same-pattern design (8×180 → 8×180) maintains OEM geometry while adding clearance or stance. Machined from 6061-T6 aluminum billet.
Vehicle Fitment (YMM)
| Make | Model | Years | Notes |
|---|---|---|---|
| Chevrolet | Silverado 2500HD | 2011–Present | 8×180 mm, M14×1.5 studs, 125.6 mm bore. SRW only. |
| Chevrolet | Silverado 3500HD (SRW) | 2011–Present | SRW only. Not for dually (DRW). 8×180 mm, M14×1.5 studs, 125.6 mm bore. |
| GMC | Sierra 2500HD | 2011–Present | 8×180 mm, M14×1.5 studs, 125.6 mm bore. SRW only. |
| GMC | Sierra 3500HD (SRW) | 2011–Present | SRW only. Not for dually (DRW). 8×180 mm, M14×1.5 studs, 125.6 mm bore. |
Tech note: Many OEM hub-bore listings for GM 8×180 show ~124.1–124.2 mm. If your hub measures ~124.1–124.2 mm, use an appropriate centering ring to properly pilot to 125.6 mm for true hub-centric fit.
Key Details
- Bolt Pattern: 8×180 mm (vehicle) → 8×180 mm (wheel)
- Stud Size: M14×1.5
- Center Bore: 125.6 mm (hub- & wheel-centric)
- Application: GM 2500/3500 SRW (not DRW)
- Type: Same-pattern billet adapter (not a conversion)
- Material: Precision CNC-machined 6061-T6 aluminum billet
Why these outperform generic spacers
Stronger than Cast — Machined from 6061-T6 Billet
- 6061-T6 aerospace aluminum: Excellent toughness and fatigue resistance for working trucks.
- Hub- & wheel-centric load path: Centers at both the hub and wheel face for smooth rotation and even load.
- Precision machining: Tight runout and concentricity for high-speed stability.
- High-strength hardware: Premium studs and nuts spec’d to meet or exceed OEM grade requirements.
- OEM geometry preserved: Same-pattern 8×180 → 8×180 improves stance without altering mating angles.
Install Notes
- Verify fitment: Confirm vehicle is GM 2500/3500 SRW with 8×180 pattern and M14×1.5 studs.
- Measure hub bore: Check the OE hub. If ~124.1–124.2 mm, have the correct centering ring to pilot to 125.6 mm.
- Prep surfaces: Safely lift and secure the vehicle; remove wheel. Clean the hub face and center bore of rust/paint/debris.
- Test-fit adapter: Slide the adapter onto the hub to ensure it seats fully and evenly (no gaps). Confirm ring fit if used.
- Mount adapter: Install nuts onto factory studs; tighten in a star pattern to the vehicle manufacturer’s torque spec.
- Mount wheel: Place wheel onto adapter studs; install lug nuts and tighten in a star pattern to spec.
- Spin & clearance check: Rotate by hand to verify no contact with calipers, tie-rod ends, or fenders.
- Road-check and re-torque: After 50–100 miles, re-torque all adapter and wheel nuts to spec; re-check periodically.
Follow your vehicle manufacturer’s torque specifications and use components that match thread type and seat style.
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