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Description
8 x 170mm to 8 x 170mm / 14 mm x 1.5 (Ford) Hub CentricFar From Stock Hub & Wheel Centric Billet Adapter (8170 8170, 141. 5 Studs, 125 mm Bore) Must order two for a pair. Pricing is for one wheel adapter only. Hub and wheel centric billet adapter built for Ford Super Duty SRW trucks using the 8170 mm bolt pattern, M141. 5 studs (see thread note below), and a 125 mm center bore. Same pattern design (8170 8170) maintains OEM geometry while adding clearance or stance. Machined from 6061 T6 aluminum billet.
Far From Stock — Hub & Wheel-Centric Billet Adapter (8×170 → 8×170, 14×1.5 Studs, 125 mm Bore)
Must order two for a pair. Pricing is for one wheel adapter only.
Hub- and wheel-centric billet adapter built for Ford Super Duty SRW trucks using the 8×170 mm bolt pattern, M14×1.5 studs (see thread note below), and a 125 mm center bore. Same-pattern design (8×170 → 8×170) maintains OEM geometry while adding clearance or stance. Machined from 6061-T6 aluminum billet.
Vehicle Fitment (YMM)
| Make | Model | Years | Notes |
|---|---|---|---|
| Ford | F-250 Super Duty (SRW) | 2003–Present | 8×170, M14×1.5 studs, 125 mm hub/wheel bore. SRW only. |
| Ford | F-350 Super Duty (SRW) | 2003–Present | 8×170, M14×1.5 studs, 125 mm hub/wheel bore. Not for dually (DRW). |
| Ford | Excursion (SRW platform) | 2003–2005 | 8×170, M14×1.5 studs*, 125 mm hub/wheel bore. *See thread note. |
Thread note: Many 1999–2002 Super Duty models use M14×2.0 wheel studs. This adapter is supplied/configured for M14×1.5 (common on ~2003+). Always verify your truck’s stud pitch before ordering.
Key Details
- Bolt Pattern: 8×170 mm (vehicle) → 8×170 mm (wheel)
- Stud Size: M14×1.5 (see thread note for 1999–2002)
- Center Bore: 125 mm hub- & wheel-centric
- Application: Ford Super Duty SRW — not for DRW (8×200)
- 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 the hub and wheel face to reduce vibration and distribute load evenly.
- Precision machining: Tight runout and concentricity for high-speed stability.
- High-strength hardware: Studs and nuts spec’d to meet or exceed OEM grade requirements.
- OEM geometry preserved: Same-pattern 8×170 → 8×170 improves stance without altering mating angles.
Install Notes
Does not fit rear axle.
- Verify fitment: Confirm your truck is Super Duty SRW with 8×170 pattern.
- Confirm thread pitch: Check a lug nut. ~2003+ typically M14×1.5; 1999–2002 often M14×2.0. Order the matching adapter hardware.
- Prep: Lift and secure vehicle; remove wheel. Clean hub face and center bore of rust/paint/debris.
- Test-fit adapter: Slide adapter onto hub; ensure full, even seating (no gaps).
- Secure adapter: Install nuts on factory studs; tighten in a star pattern to the vehicle manufacturer’s torque spec.
- Mount wheel: Place wheel on 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.
- Re-torque: After 50–100 miles, re-torque adapter and wheel nuts to spec; check periodically.
Follow your owner’s manual/wheel maker’s torque specs and seat style (cone/flat) for all fasteners.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Impressive Sound Deadening Solution with Enhanced Audio Quality
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I recently purchased the Siless 50 mil (1.3mm) 52 sqft Car Sound Deadening mat, and I am delighted with the results it has delivered. Right from the start, I was impressed with the packaging, which ensured the product arrived in perfect condition.
One of the standout features of this sound deadening mat is its ease of use. It was a breeze to cut and modify according to my specific needs. Whether I needed to cover specific areas or customize the size, the mat accommodated my requirements effortlessly. This flexibility made the installation process a breeze.
The Siless Sound Deadening mat has proven to be highly effective in reducing outside noise within my vehicle. With just a half cabin install, I noticed a significant reduction of approximately 10 decibels, making my driving experience much quieter and more comfortable. The mat acted as a reliable barrier against external noise, allowing me to enjoy a more peaceful ride.
Furthermore, the sound quality from my vehicle's audio system experienced a noticeable improvement. The Siless mat effectively dampened vibrations and minimized resonance, resulting in cleaner and more refined audio output. The mat's thickness of 50 mil (1.3mm) ensures optimal sound absorption, contributing to its effectiveness in creating a quieter and more enjoyable driving environment. I can now appreciate the full range of tones and enjoy a more immersive music experience during my drives.
Overall, I highly recommend the Siless 50 mil Car Sound Deadening mat for anyone seeking a reliable and effective solution to reduce noise and enhance audio quality in their vehicle. The easy cutting and modifying process, along with the excellent packaging, contribute to a seamless installation experience. With a significant reduction in outside noise and an improvement in sound system performance, this sound deadening mat has exceeded my expectations.
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Reviewed in the United States on May 27, 2023
★★★★★ 5
Good quality sound deadener at a good price.
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Quality sound deadening that adheres to body panels well. You can easily hear the vibration reduction after just the first piece by tapping on the body panel before and after.
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Reviewed in the United States on November 21, 2025
★★★★★ 4
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Works well and sticks well. I used a roller and it has been over a year and everything still sticking as good as day i put it everywhere. I didnt use any adhesive but I did wipe everything down with acetone before I applied. Good stuff at a good price
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Reviewed in the United States on November 23, 2025
★★★★★ 5
Good value
Model: NewSLS50_52, Model: NewSLS50_52
Working perfectly. Install of stereo equipment and carpet left me wanting some heat and sound resistant materials.
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Reviewed in the United States on March 23, 2026