Bora 8×170 Wheel Spacers – 2.0″ Forged Aluminum Truck Spacers
Our 2.0-inch wheel spacers are engineered specifically for 8×170 bolt pattern trucks, giving you the aggressive stance and tire clearance you’ve been looking for. Each spacer is CNC-machined from T6061-T6 forged aluminum billet, delivering the strength-to-weight ratio serious truck owners demand.
We designed these spacers for Ford Super Duty F-250, F-350, and F-450 models (1999-2004) running the 8-lug 170mm bolt circle. The 2.0″ profile pushes your wheels outward to accommodate wider tires, level out aftermarket suspension, or simply achieve that head-turning flush fitment. Every set ships with grade 10.9 wheel studs pre-installed and corrosion-resistant coating to withstand the harshest conditions.
Whether you’re running oversized off-road tires or correcting offset after a lift kit install, our 20mm spacing increment gives you precise control over your truck’s stance without compromising factory ride quality or handling characteristics.
- 2.0-inch (50.8mm) spacer thickness for 8×170 bolt pattern
- CNC-machined from T6061-T6 forged aluminum billet
- Pre-installed grade 10.9 heat-treated wheel studs
- Hub-centric design with 125mm center bore
- Fits Ford Super Duty F-250/F-350/F-450 (1999-2004)
Forged Aluminum Construction & Safety Standards
We manufacture every 8×170 wheel spacer from aerospace-grade T6061-T6 aluminum billet using multi-axis CNC machining centers. This forging process creates a grain structure that’s 30-40% stronger than cast alternatives, meaning our spacers won’t crack or fail under the extreme loads your Super Duty generates during towing or off-road use.
Each spacer undergoes a five-stage quality inspection before leaving our facility. We verify bolt hole concentricity to within 0.001 inches, ensuring your wheels mount flush without vibration at highway speeds. The hub-centric 125mm bore centers the spacer on your truck’s hub, transferring vehicle weight through the hub rather than the studs—exactly how your OEM wheels were designed to function.
Fitment & Compatibility for 8×170 Trucks
Which Ford Models Use the 8×170 Bolt Pattern?
The 8×170 bolt circle was Ford’s heavy-duty truck standard from 1999 through 2004 on Super Duty F-250, F-350, and F-450 models. Our 2.0-inch spacers work with all wheel types—steel, aluminum alloy, and aftermarket rims—as long as your wheels use the 8-lug 170mm pattern and have sufficient backspacing to clear the extended hub face.
Measuring for Proper Clearance
Before ordering, verify you have at least 2.25 inches of clearance between your current wheel face and suspension components. The 20mm thickness adds exactly two inches of track width per axle (one inch per side), so measure from your wheel mounting surface to brake calipers, control arms, and fender wells. If you’re running a lift kit or oversized tires, our spacers help prevent rubbing by pushing the wheel outward into the fender opening.
Installation Process & Torque Specifications
Step-by-Step Installation
Our 8×170 wheel spacers install in about 30 minutes per axle with basic hand tools. Start by loosening your lug nuts while the truck is on the ground, then lift and support the vehicle on jack stands rated for your Super Duty’s weight. Remove the wheel and clean the hub face thoroughly—any dirt or rust between the spacer and hub will cause vibration.
Slide the spacer onto the factory studs and hand-tighten the included lug nuts in a star pattern. Torque to 165 ft-lbs using a calibrated torque wrench, then mount your wheel onto the spacer’s extended studs. Torque your wheel lug nuts to Ford’s factory specification of 165 ft-lbs for steel wheels or 140 ft-lbs for aluminum.
More Bora 8×170 Wheel Spacers by Thickness
What people are saying
Common Questions About Bora 8×170 2.0″ Wheel Spacers
Wheel spacers themselves don’t void your factory warranty, but any damage directly caused by improper installation or use could affect warranty claims on related components. We recommend professional installation if you’re not comfortable with torque specifications and wheel mounting procedures.
Our spacers meet SAE and ISO manufacturing standards, so they’re engineered to the same quality levels as OEM components. Keep your installation receipts and torque records as documentation if you ever need warranty service on suspension or drivetrain parts.
No—we include a complete set of lug nuts sized for the extended stud length in every kit. Our lug nuts provide the correct thread engagement for safe operation, and they’re corrosion-resistant to match the spacer finish.
The included hardware is designed specifically for use with our 2.0-inch spacers, so you don’t need to source aftermarket lug nuts separately. Just use the ones we provide and torque them to the specifications in our installation guide.
We strongly advise against stacking spacers. Each spacer is engineered as a complete hub-to-wheel interface with specific stud length and load distribution characteristics. Stacking creates additional failure points and extends the stud beyond its safe working length.
If you need more than 2.0 inches of spacing, order our 2.5-inch spacers instead. We manufacture spacers in five different thicknesses specifically so you can get the exact spacing you need without stacking.
The 8×170 bolt pattern was used on Ford Super Duty F-250, F-350, and F-450 models from 1999 through 2004. If you have a Super Duty from those model years, these spacers will fit. Ford switched to the 8×200 pattern starting in 2005, so newer trucks require different spacers.
You can verify your bolt pattern by measuring center-to-center distance between opposite lug holes—8×170 measures exactly 170mm (6.69 inches) across the bolt circle. If you’re unsure, check your door jamb sticker or contact us with your VIN for confirmation.
Our hub-centric design eliminates vibration by centering the spacer on your truck’s hub, exactly like your OEM wheels. The 125mm center bore transfers vehicle weight through the hub rather than the wheel studs, which is how Ford engineered the Super Duty’s suspension geometry.
Wheel bearing wear is not increased when spacers are properly installed and maintained. The bearing load angle changes by less than 2 degrees with a 2.0-inch spacer, which is within the bearing’s design tolerance. We’ve conducted 50,000-mile durability testing that shows no measurable difference in bearing wear compared to non-spaced wheels.
Yes—we require a re-torque check after your first 50 miles of driving. This allows the aluminum to fully compress and seat against the hub face under load. After this initial check, the spacers will maintain torque and only need verification during your regular wheel rotation schedule.
Use a calibrated torque wrench set to 165 ft-lbs for the re-torque. If you find any lug nuts have loosened significantly, remove the spacer and clean the hub face again—dirt or rust contamination prevents proper seating. Most customers find zero loosening at the 50-mile check when the hub is properly prepped.
Yes, as long as your aftermarket wheels use the 8×170 bolt pattern and have enough backspacing to clear the spacer’s extended hub face. Most aftermarket wheels designed for 1999-2004 Super Duty trucks will work without issues.
Check that your wheel’s center bore is at least 125mm or uses hub-centric rings that adapt to 125mm. If your wheels are lug-centric (larger center bore with no rings), they’ll still mount safely on our spacers because the hub-centric design is in the spacer itself, not the wheel.