12mm Wheel Spacers Hubcentric 5x4.75 70.3mm - Offset Correction

In this review of the 12mm Wheel Spacers Hubcentric 5x4.75, the bottom line is simple: these spacers are for owners of older GM cars who want a precise, reliable way to correct wheel offset and improve stance without guessing fitment. The reviewer found the CNC-machined 6061 T-6 construction reassuringly solid and appreciated that the hubcentric 70.3mm bore gives a clean, wobble-free fit. This is a straight-forward performance and appearance upgrade when used with extended studs as recommended.

Key Features

• 12mm Thickness: Provides a meaningful offset correction to push wheels outward for improved track width and visual stance.
• 5x4.75 Bolt Pattern: Matches common GM patterns so these spacers fit a range of Camaros, Corvettes and similar models for reliable compatibility.
• 70.3mm Center Bore: Hubcentric design centers the wheel on the hub to reduce vibration and deliver a balanced ride.
• Premium 6061 T-6 Aluminum: Heat-treated material offers high tensile strength and light weight for long service life without adding excessive unsprung mass.
• CNC 4 Axis Machining: Automated machining ensures consistent tolerances and eliminates common balance issues found on lesser-made spacers.
• Two Piece Set: Supplied as two pieces, enough for one axle, so buyers know exactly what they will receive.

Who It's For

This product is aimed at owners of Chevrolet Camaro (1982-2002), Corvette (1984-2019), Blazer and S10 models (1982-2005 depending on model), Pontiac Firebird and Trans Am, and several related GM vehicles who need a hubcentric spacer with a 5x4.75 bolt pattern and a 70.3mm bore. It suits drivers who want durable, CNC-made parts that correct wheel offset, reduce rubbing, and improve vehicle stance.

Those who should look elsewhere include drivers unwilling to install extended studs or people seeking a full set for both axles in one purchase, since this listing is a 2-piece set for one axle only. Also, buyers needing a different bolt pattern or center bore should verify fitment rather than assume compatibility.

Pros & Cons

Pros

• Solid, well-machined feel from 6061 T-6 aluminum delivers confidence in durability and fit.
• Hubcentric 70.3mm bore reduces vibration and makes wheel centering straightforward.
• CNC manufacturing yields consistent tolerances so wheels sit true and balanced.
• Compatible with a wide list of GM models, making it useful for common classic and modern applications.

Cons

• Factory studs are not long enough; extended studs are required and sold separately.
• Sold as 2 pieces, so buyers needing spacers for both front and rear must purchase an additional set.

Specifications

Quantity	2 Pieces (one axle)
Width	12mm
Bolt Pattern	5x4.75 (5x120.7)
Thread Pitch	12x1.5
Center Bore	70.3mm (hubcentric)
Material	6061 T-6 Aluminum
Manufacture	CNC 4 Axis Machining

Our Verdict

For GM owners who need a reliable, hubcentric 12mm spacer to correct offset and improve stance, this spacer set is a practical choice thanks to precise CNC machining and durable 6061 T-6 material. It represents good value for a single-axle upgrade when buyers account for the need to fit extended studs and, if required, purchase a second set for the other axle.

Frequently Asked Questions

Will these fit my Corvette hub?
They fit Corvette models that use a 5x4.75 bolt pattern with a 70.3mm bore; verify year and hub specifications before purchase.

Do I need new studs?
Yes, factory studs are not long enough; extended studs are required for proper engagement and safety.

Is the set enough for both front and rear?
No, this listing contains 2 pieces for a single axle; buy two sets for both axles.