Bora 3/8″ Wheel Spacers | Precision-Engineered 30mm Offset Solutions
Our 3/8″ wheel spacers deliver the perfect balance between aggressive stance and functional clearance for trucks and SUVs. Each spacer is CNC-machined from billet 6061-T6 aluminum to exact tolerances, providing a reliable 30mm offset that pushes your wheels outward for improved handling stability and tire clearance.
We designed these spacers for enthusiasts who demand both performance and safety. The hubcentric design ensures zero vibration at highway speeds, while the chamfered stud holes prevent binding during installation. Whether you’re running larger tires, aftermarket suspension, or simply want a more planted appearance, our 3/8″ spacers transform your vehicle’s geometry without compromising ride quality.
- CNC-machined from aerospace-grade 6061-T6 aluminum for maximum strength-to-weight ratio
- Precision 30mm (3/8″) thickness provides optimal wheel offset adjustment
- Hubcentric design with vehicle-specific pilot bore eliminates wheel wobble
- Includes extended Grade 10.9 wheel studs or lug bolts pre-installed
- Corrosion-resistant anodized finish withstands road salt and harsh conditions
Materials & Construction Quality
We manufacture every 3/8″ wheel spacer from solid billet 6061-T6 aluminum using precision CNC machining processes. This aerospace-grade material provides exceptional tensile strength exceeding 45,000 psi while remaining lightweight enough to avoid adding unnecessary unsprung mass to your suspension.
The anodizing process creates a protective oxide layer that penetrates the aluminum surface, making our spacers resistant to corrosion from road salt, brake dust, and environmental exposure. Each spacer undergoes multi-point inspection for dimensional accuracy, ensuring the critical 30mm thickness remains consistent within 0.001″ tolerances across the entire production run.
Installation & Fitment Details
Hubcentric vs. Lug-Centric Design
Our 3/8″ spacers feature a true hubcentric design with vehicle-specific pilot bores that match your factory hub diameter. This design ensures the spacer centers on the hub rather than relying solely on lug nuts for alignment, eliminating vibration and steering wobble that plague generic lug-centric spacers.
Each set includes extended wheel studs or lug bolts factory-installed and torqued to specification. The chamfered stud holes guide fasteners smoothly into place, preventing cross-threading during installation. We recommend applying anti-seize compound to threads and re-torquing lug nuts after the first 50-100 miles of driving.
Performance Benefits & Applications
Adding 3/8″ wheel spacers improves handling characteristics by widening your vehicle’s track width and lowering the center of gravity relative to the contact patch. The 30mm offset reduces body roll during cornering and provides more predictable turn-in response, especially when paired with performance tires or lowered suspension.
These spacers are particularly valuable when upgrading to larger brake calipers or rotors that would otherwise contact factory wheels. The additional clearance prevents interference while maintaining proper wheel alignment. Off-road enthusiasts benefit from increased stability on uneven terrain and the ability to run wider tires without rubbing fenders.
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Common Questions About Bora 3/8″ Wheel Spacers
Our 3/8″ wheel spacers provide a precise 30mm offset, which converts to approximately 0.375 inches or 9.525mm per side of additional track width. This measurement represents the distance your wheel face moves outward from the hub mounting surface.
The 30mm thickness is measured at the mounting face and maintained within 0.001″ tolerance across the entire spacer diameter. This precision ensures even load distribution and prevents wheel wobble or uneven tire wear during operation.
Yes, our 3/8″ wheel spacers are engineered specifically for daily driving, highway use, and performance applications. Each spacer is CNC-machined from billet 6061-T6 aluminum and tested to exceed SAE J2530 standards for aftermarket wheel attachment devices.
We subject every production batch to fatigue testing simulating 100,000 miles of driving conditions with loads exceeding 3,000 pounds per corner. When installed correctly with proper torque specifications and maintained according to our guidelines, Bora spacers provide the same reliability as OEM components. We recommend periodic inspection and re-torquing lug nuts after the first 50-100 miles and during regular tire rotations.
Our 3/8″ wheel spacers are available in multiple bolt patterns and hub bore sizes to accommodate most trucks and SUVs. Common applications include Ford F-150, Chevrolet Silverado, Ram 1500, Toyota Tacoma, Jeep Wrangler, and similar vehicles.
To ensure proper fitment, you’ll need to verify three critical measurements: your vehicle’s bolt pattern (such as 6×5.5″ or 5×4.5″), the hub bore diameter, and thread pitch for wheel studs. Our vehicle fitment database provides specific part numbers for each application. We also recommend checking wheel-to-fender clearance before installation, especially with larger tires or lowered suspensions.
Installation requires basic hand tools found in most home garages: a quality torque wrench, socket set, and jack stands rated for your vehicle’s weight. The extended studs come pre-installed on each spacer, eliminating the need for hydraulic presses or professional stud replacement services.
We recommend using anti-seize compound on threads and a wire brush to clean the hub mounting surface before installation. The entire process typically takes 45-60 minutes for all four wheels. Our detailed installation guide includes step-by-step instructions, torque specifications for your vehicle, and tips for ensuring proper seating and alignment.
The 30mm offset provided by our 3/8″ spacers widens your vehicle’s track width by approximately 2.36 inches total (1.18″ per side), which improves handling stability by lowering the effective center of gravity relative to the tire contact patch. Most drivers notice reduced body roll during cornering and more predictable steering response.
The added track width also increases lateral stability, particularly beneficial for trucks with higher centers of gravity or vehicles carrying heavy loads. Because our spacers are manufactured from lightweight aluminum alloy, they add minimal unsprung weight (typically 2-3 pounds per corner), so suspension responsiveness and ride quality remain largely unchanged from stock configuration.
While it’s technically possible to stack wheel spacers, we do not recommend this practice for safety and performance reasons. Stacking creates additional stress points and increases the likelihood of installation errors that could compromise safety.
If you need more than 30mm of offset, we recommend selecting our thicker single-piece spacer options rather than combining multiple thinner spacers. Our product line includes 1/2″ and larger sizes that provide greater offset while maintaining structural integrity through single-piece construction. For custom offset requirements beyond our standard offerings, contact our technical team to discuss proper solutions for your specific application.
After initial installation, re-torque all lug nuts to specification after the first 50-100 miles of driving to account for normal settling of components. During regular tire rotations (typically every 5,000-7,000 miles), inspect spacer mounting surfaces for debris, corrosion, or damage.
Check that lug nuts maintain proper torque and verify no visible gap exists between the spacer and hub or spacer and wheel. The anodized finish requires no special care but can be cleaned with mild soap and water during regular wheel cleaning. With proper installation and routine inspection, Bora spacers require no additional maintenance beyond normal wheel service intervals.